Answer: B) False
Explanation: A fomite is a inanimate object or material that can become contaminated with microorganisms and can transfer them to another person.Fomites are a part of the chain of infection because they can act as a reservoir for pathogens, which can then be transferred to a host, leading to infection.
False, a fomite is a part of the chain of infection.
In the infection chain, humans are known to be susceptible to fomite agent. This is because they have direct contact with infected surface. Mode of transmission is the process in which the way an infection is transferred to a susceptible host.
Fomite is an exanimate object that helps to transmit an infection or a harmful bacterium from one person to the another.
The first link in the chain of infection with any of the infectious agents or pathogens that live on the planet. This includes virus, bacteria, fungi, parasites and more.
It can take many forms, including physical contact, breathing, and sexual transmission. Viruses- such as shingles, Influenza A, Hepatitis. Bacteria such as Lyme disease and leptospirosis fungi.
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Why should psychologists be familiar with human and animal biological, physiological, and neurological systems (i.e., brain structure/function, anatomy of the sensory organs, etc.)? How does this knowledge really lead to improvement in the human psychological condition? Be sure to answer all questions and their components.
answer
psychologists are better able to understand how the brain and physiological processes might influence the way people think, act, and feel
steps
an extreme example would be
if the person had an injury in the frontal lobe of the brain it might explain why the person has a loss of spontaneity in interacting with others
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which of the following statements describes why the study of primate behavior and morphology is a part of biological anthropology?
Primates are our nearest biological relatives. this statement describes why the study of primate behavior and morphology is a part of biological anthropology.
Physical anthropology, commonly referred to as biological anthropology, is a branch of science that focuses on the biological and behavioural characteristics of living things, including humans, extinct hominin relatives, and closely related non-human primates, especially from an evolutionary standpoint. Using a biological lens, this branch of anthropology conducts systematic investigations of people. Biological anthropology is a subfield of anthropology that has numerous branches within it. All branches share a common orientation toward using evolutionary theory to comprehend human biology and behaviour, or they use it in this way. By examining human remains found in an archaeological setting, a field of research known as bioarchaeology studies earlier human cultures.
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complete question
which of the following statements describes why the study of primate behavior and morphology is a part of biological anthropology?
Primates are our nearest biological relatives. Biologists do not want to study primates. Primates compete with humans for food and other resources. Biological anthropology is a subdiscipline of biology, and primates are animals.
exercise sigma bonding question content area sigma bonds can form between different types of orbitals. the main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei. the images below show the shapes of two orbitals on adjacent atoms. choose all of the combinations that will lead to formation of a sigma bond. (select all that apply.)
The none of these combination provided in the option can form sigma bond since its bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei.
Which orbitals constitute the sigma bond?A covalent relationship known as a sigma bond is established when atomic orbitals and/or hybrid orbitals overlap one another on the bond axis (i.e., along a line connected the two bonded atoms). The overlap of two 1s orbitals, one from each hydrogen atom, leads to the formation of the sigma bond in a hydrogen molecule (shown in red).
Can two sp3 orbitals form sigma bonds?These sp3 hybrid orbitals serve as the foundation for all bonding. The overlap of the sp3 hybrid orbitals with the hydrogen 1s atomic orbitals leads to the creation of the C-H and O-H sigma bonds. The sp3 hybrid orbitals on every atom overlap to create the CC and CO sigma bonds.
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Exercise sigma bonding question content area sigma bonds can form between different types of orbitals. the main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei. the images below show the shapes of two orbitals on adjacent atoms. choose all of the combinations that will lead to formation of a sigma bond. (select all that apply.)
Options are marked to be A,B,C,D,E,F based on figure.
you are a marine biologist and ethologist fascinated by the environmental cues which regulate organismic behavior. you are working closely with fiddler crabs, which rely on environmental cues to regulate reproduction. to study the effects of environment on behavior, you take fiddler crabs from bar harbor, maine and transplant them to a different beach. which of the following environments would have the largest effect on their reproductive behavior?
As a marine scientist and ethologist investigating the impact of environment on the reproductive behavior of fiddler crabs, I would anticipate the environment having the greatest.
effect on their reproductive behavior to be the one that differs the most from the crabs' original habitat. For example, taking fiddler crabs from Bar Harbor, Maine and transplanting them to a different beach with a dramatically different temperature, salinity, or tidal regime would likely have a greater influence on their reproductive behavior than transferring them to a beach with similar circumstances.Furthermore, if the beach is occupied by different varieties of fiddler crabs, this would impact their reproductive behavior since fiddler crabs utilize visual clues to identify their own species. If They are moved to a beach with different appearing fiddler crabs, which will influence their mating behavior. Overall, the degree of closeness or dissimilarity between the crabs' original habitat and the new environment to which they are transplanted is the most critical element in determining the influence of the environment on fiddler crab reproductive behavior.
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For each scenario below, decide if it is describing a theory or a hypothesis and classify it accordingly. Hypothesis Theory Research has demonstrated that all living things have a common ancestor. Years of evidence have demonstrated that all living things are comprised of cells. Book Print ferences A scientist notices that a certain mold is Inhibiting bacterial growth and suggests that the mold is producing antibiotic substances A researcher notices that her plant has stopped growing and wonders if it could be because of a lack of sunlight These are plausible explanations for a single natural event These are accepted explanations for how the world works
A hypothesis in a logical setting is a testable assertion about the connection between at least two factors or a proposed clarification for some noticed peculiarity.
Straightforward speculation is something said to mirror the connection between precisely two factors. One autonomous and one ward. Consider the model, "Smoking is an unmistakable reason for the cellular breakdown in the lungs." The reliant variable, cellular breakdown in the lungs, is subject to the free factor, smoking.
Hypothesis expresses your expectations about what your exploration will find. It is a provisional solution to your exploration question that has not yet been tried. For some examination projects, you could need to compose a few speculations that address various parts of your exploration question.
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in drosophila, gray body color (g) is dominant over ebony body color (g), while long wings (l) are dominant over vestigial wings (l). work the following crosses through the f2 generation, and determine the genotypic and phenotypic ratios for each generation. the cross we're using is gray, long x ebony, vestigial (both homozygous)
The cross being used is gray, long x ebony, vestigial (both homozygous).
F1 generation:
All offspring will be gray and long-winged (GgLl) because gray (G) and long wings (L) are dominant over ebony and vestigial wings.
F2 generation:
The genotypic ratio for the F2 generation will be 1GgLl : 2Ggl : 2Ggl : 1ggllThe phenotypic ratio for the F2 generation will be 3 gray, long-winged: 1 gray, vestigial-winged: 1 ebony, long-winged: 1 ebony, vestigial-wingedThe F1 generation will be all gray and long-winged because gray and long wings are dominant. The F2 generation will have a 3:1 ratio of gray, long-winged to gray, vestigial-winged, and a 1:1 ratio of ebony, long-winged to ebony, vestigial-winged.
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The application of the comparative method in his research in Papua New Guinea led coauthor Robert Welsch to focus on
Robert Welsch, a coauthor, focused on mask collectors, villagers, and museum collections as a result of using the comparative approach during his research in Papua New Guinea. Therefore, option b is right.
In anthropology, the comparative method helps the researcher to test hypotheses about the relations between the aspects of cultural systems by using data and information from other societies. This helps them to make comparisons between people and their past and present culture, related species, and fossils. This helps to understand one's customs and culture by studying their cultural background.
By speaking with village elders in several villages, reading published and unpublished descriptions of mask collectors who visited various villages, and examining museum collections, the coauthor Robert Welsch can understand the villagers in Papua New Guinea.
The complete question -
The application of the comparative method in his research in Papua New Guinea led coauthor Robert Welsch to focus on
(a) published and unpublished accounts of mask collectors who visited different villages
(b) all of the answers are correct
(c) interviews of village elders in different villages
(d) museum collections
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Which of the following reaction elements can be changed by an enzyme?
bacteria culture a culture of the bacterium rhodobacter sphaeroides initially has 25 bacteria and t hours later increases at a rate of 3.4657e0.1386t population size after four hours.
Bacteria culture a culture of the bacterium rhodobacter sphaeroides initially has 25 bacteria and t hours later increases at a rate of 3.4657e0.1386t bacteria per hour, so the population size after four hours is 44.
A procedure for determining if you're suffering from a bacterial infection is a bacteria culture. A sampling of blood, faeces, urine, or spinal fluid may be used for the test. A healthcare professional can choose the best suitable course of therapy utilizing this kind of sample to detect what brought on the infection.
A type of purple bacterium which can produce energy using photosynthesis is called Rhodobacter sphaeroides. In the lack of light, anaerobic phototrophy and aerobic chemoheterotrophy are the optimal development environments for it.
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bacteria culture a culture of the bacterium rhodobacter sphaeroides initially has 25 bacteria and t hours later increases at a rate of 3.4657e0.1386t bacteria per hour. Find the population size after four hours.
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which of the following most closely resembles cellular respiration
Logs burning in a campfire are the circumstances that most mimic cellular respiration. This is due to the fact that both processes release energy and depend on oxygen to continue. The body uses cellular respiration, a series of metabolic events, to liberate energy from food.
what is respiration?This is the process of breathing; the taking in and exhaling of air. Biology. the whole of the physical and chemical mechanisms that transport oxygen to tissues and cells and release carbon dioxide and water during oxidation in an organism.
what does metabolic events?It is absolutely necessary for an organism to preserve its life for a process known as metabolism to take place in its body. These activities, which include anabolism and catabolism, are also known as metabolic processes.
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angel wants to become a successful brewer. he analyzes the target market for beer and finds that there is a market niche for gluten-free beer. angel considers the types of markets he can target with his beer. he knows that many people perceive gluten as unhealthy and might be inclined to buy his beer due to its gluten-free nature. however, he also knows there is a strong demand among those who suffer from celiac disease. after doing sales and cost estimates, angel feels ready to make a decision.
Assuming Angel makes the decision to target people with Celiac Disease in particular. It is FALSE that Angel is adopting a differentiated targeting strategy.
People who suffer from celiac disease and those who think gluten is detrimental. Additionally, he has calculated costs and revenue. Now that Angel has finished researching the market, he is prepared to choose. By highlighting the fact that his beer is gluten-free, he might be able to appeal to a wider group of people who think that gluten is unhealthy and are looking for healthier substitutes. Furthermore, since they can only consume gluten-free foods, celiac disease patients will be a huge market for his beer. According to his projected sales and expenses, Angel might consider producing gluten-free beer. To distinguish his products from rivals, he should conduct study because there are other gluten-free beers available. He might also have to adhere to certain food safety regulations in order to produce gluten-free beer. Overall, it looks as though Angel did a respectable job of studying the market and developing a niche for gluten-free beer.
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The complete question is:
READ the passage carefully:
Angel aspires to become a prosperous brewer. He examines the beer market's target demographic and discovers that gluten-free beer has a niche demand. Angel thinks about the markets his beer can appeal to. He is aware that many individuals believe gluten to be bad and may be more likely to purchase his beer because it is gluten-free. But he is also aware of the substantial demand from celiac disease patients. Angel is prepared to make a choice after estimating revenues and costs.
Let's say that Angel makes the decision to target people with Celiac Disease in particular. Although he is aware that many customers avoid gluten for purely health-related reasons, he feels it would be better to use his marketing skills to support a marketing plan that would focus on a certain market niche.
True, or False
Angel is adopting a differentiated targeting strategy.
which of the following distinguishes a human cell in metaphase of mitosis from a human cell in metaphase ii of meiosis?
The differences between human cell in metaphase of mitosis from a human cell in metaphase ii of meiosis are
Meiosis's metaphase differs from that of mitosis. Only metaphase-I allows for observation of the difference. The appearance of metaphase-II is comparable to that of mitosis.
When in metaphase II and the metaphase of mitosis, chromosomes only reside on one plate near the equator. Metaphase I and the mitosis-related metaphase are the same.
The above stated statements are differences between human cell in metaphase of mitosis from a human cell in metaphase ii of meiosis
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TRUE OR FALSE 3. luis is a nobel prize-winning researcher who has made groundbreaking discoveries in the field of biology, so his speech to a group of college students should be excellent.
Luis is a Nobel prize-winning researcher who has made groundbreaking discoveries in the field of biology, so his speech to a group of college students should be excellent is a false statement.
On June 13, 1911, Luis W. Alvarez was born in San Francisco, California. From the University of Chicago, he earned his B.Sc. in science in 1932, M.Sc. in 1934, and Ph.D. in 1936. In 1936, Dr. Alvarez began working as a research fellow at the University of California's Radiation Laboratory. He is currently a professor there. He was on leave at the Massachusetts Institute of Technology's Radiation Laboratory from 1940 to 1943, the University of Chicago's Metallurgical Laboratory from 1943 to 1944, and the Manhattan District's Los Alamos Laboratory from 1944 to 1945.
In order to minimize any confusion, Louis carefully double-checks his evidence before a speech and rehearse pronouncing any unfamiliar terminology.
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False. Having won a Nobel Prize does not necessarily mean that someone is a good public speaker or that their speech to a group of college students would be excellent.
While winning a Nobel Prize is certainly a significant achievement and indicates that a person is an expert in their field, it does not guarantee that they will be a good speaker. Speaking effectively in front of an audience requires a combination of factors such as engaging delivery, clear and concise messaging, the ability to connect with the audience, and a thorough understanding of the material. It is possible that a Nobel Prize-winning researcher may excel in their field of study, but may not be comfortable or skilled at presenting their findings in a public setting. On the other hand, there may be individuals who have not won a Nobel Prize, but have honed their public speaking skills and are able to effectively convey their ideas to a group of college students.
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flower position, stem length, and seed shape are three characters that mendel studied. each is controlled by an independently assorting gene and has dominant and recessive expression as follows:
flower position, stem length, and seed shape are three characters that mendel studied. each is controlled by an independently assorting gene and has dominant and recessive expression as follows:
Character Dominant Recessive
Flower Position Axial (A) Terminal (a)
Stem Length Tall (T) Dwarf (t)
Seed Shape Round (R) Wrinkled (r)
Different genes independently separate from one another when reproductive cells develop, according to the Principle of Independent Assortment. When Gregor Mendel originally studied genetics in pea shops in 1865, he discovered the independent multifariousness of genes and the rates that go on with them. Mendel conducted trihybrid crosses, which are unions of organisms that vary in two traits. When he crossed different organisms, he set up that the particularity combinations in the get didn't inescapably correspond to the particularity combinations in the maternal organisms. He created the Principle of Independent multifariousness using the information he had. As of moment, we're apprehensive that in eukaryotes, meiosis is when this different collection of separate genes happens.
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are visual pigments that respond to different wavelengths of light and allow for color vision in vertebrates. tetrapods vary in the wavelengths to which they are sensitive because they have different numbers and variants of these pigments. we can infer from this phylogeny that the tetrapo
Visual pigments in vertebrates emerged approximately 500 million years ago, prior to the crucial evolutionary step of jaw development.
Through gene duplication, four spectrally distinct classes of cone opsin evolved, followed by the rod opsin class, which arose from the duplication of the middle-wave-sensitive cone opsin. Many modern teleost fish, reptiles, and birds have all four cone types, while one or more classes have been lost in primitive fish, amphibians, and mammals. Because of gene duplication within the cone classes, particularly in teleosts, numerous opsins are available during development, both temporally and geographically.
Humans have four distinct vision pigments, with maximum wavelengths of 414, 497, 530, and 560 nm. Lights in the 400-700 nm range are thus considered.
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Invertebrates first developed visual pigments around 500 million years ago, before the creation of the jaw, which was a key evolutionary step for vertebrates.
Four spectrally diverse classes of cone opsins developed by gene duplication, which was followed by the emergence of the rod opsin class from the duplication of the middle-wave-sensitive cone opsin. In contrast to archaic fish, amphibians, and mammals, many modern teleost fish, reptiles, and birds have all four cone kinds.
Numerous opsins are accessible during development, both temporally and spatially, as a result of gene duplication within the cone classes, especially in teleosts. Maximum wavelengths of the four different vision pigments in humans are 414, 497, 530, and 560 nm. Thus, lights between 400 and 700 nm are taken into account.
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Which of the following characteristics will produce the most desirable smear to be examined using a Gram stain?
A. A single drop of cerebrospinal fluid on a slide
B. Thick, opaque material from an abscess on a slide
C. Thin, monolayer of material from an abscess on a slide
D. Six drops of blood from an EDTA tube on a slide
Characteristics which produce the smear and examined using a Gram stain is C) Thin, monolayer of material from an abscess on a slide.So,correct option is C.
Gram staining is a bacteriological research center technique used to separate bacterial species into two huge gatherings (gram-positive and gram-negative) in view of the actual properties of their phone walls. Gram staining isn't utilized to order archaea, previously archaeabacteria, since these microorganisms yield generally changing reactions that don't follow their phylogenetic groups.
Gram staining separates microbes by the substance and actual properties of their cell walls. Gram-positive cells have a thick layer of peptidoglycan in the cell wall that holds the essential stain, gem violet. Gram-negative cells have a more slender peptidoglycan layer that permits the gem violet to clean out on expansion of ethanol. They are stained pink or red by the counterstain, regularly safranin or fuchsine. Lugol's iodine arrangement is constantly added after option of gem violet to reinforce the obligations of the stain with the cell film.
Hence, correct option is C.
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FILL IN THE BLANK the plants that will be able to reach the interior of the pumice plain first are likely to be seeds with cotyledons and have ______dispersed seeds.
Answer:
The plants that will be able to reach the interior of the pumice plain first are likely to be seeds with cotyledons and have wind dispersed seeds.
which statement correctly describes the nuclear envelope of a eukaryotic cell? view available hint(s)for part a which statement correctly describes the nuclear envelope of a eukaryotic cell? plasmodesmata in the nuclear envelope permit the exchange of macromolecules between the nucleus and the cytoplasm. the nuclear envelope is a single membrane, consisting of a phospholipid bilayer. the outer layer of the nuclear envelope is lined with a lamina. the nuclear envelope is continuous with the endoplasmic reticulum. all of the proteins of the cell are synthesized on ribosomes bound on the nuclear envelope.
The statement which is true for a eukaryotic cell's nuclear envelope is a phospholipid bilayer makes up the whole membrane that makes up the nuclear envelope .
Eukaryotic cells have a more sophisticated structure than prokaryotic cells, which should be obvious by this time. Organelles enable multiple processes to take place simultaneously in the cell. Let's first explore the plasma membrane and the cytoplasm of the eukaryotic cell before talking about the roles of the organelles within the cell Plasmonic Membrane Eukaryotic cells, like prokaryotes, have a plasma membrane that is composed of a phospholipid bilayer with embedded proteins and serves to separate the inside of the cell from the external environment. A phospholipid is a lipid molecule made up of a phosphate group, a glycerol backbone, and two fatty acid chains. In order to maintain internal conditions, the plasma membrane actively brings in or removes some substances while actively regulating the passage of others, such as organic molecules, ions, and water.
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Two parents who are each known to be carriers of an autosomal recessive allele have four children. None of the children has the recessive condition. What is the probability that two or more of the children are carriers of the recessive allele?
The likelihood that one or more of the children is a carrier is equal to the sum of all probabilities minus the likelihood that none of the children is a carrier. The correct answer is 0.988.
Because both parents are carriers, they are heterozygous.
aa* aa —à AA, aa, aa
The likelihood of becoming Aa is 2/3. (because one is recessive)
The likelihood of not being a carrier is = 1/3.
The likelihood that one or more of the four offspring are carriers of the recessive gene (meaning at least one) is = 1 - (probability of none of the children is a carrier)
= 1 – (1/3)^4 = 0.988
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assuming independent assortment, why did mendel expect a 3:1 ratio of dominant to recessive phenotypes for each of the three traits in the trihybrid cross? assuming independent assortment, why did mendel expect a 3:1 ratio of dominant to recessive phenotypes for each of the three traits in the trihybrid cross? mendel predicted that when inherited together, the three traits in the trihybrid cross would always sort dominant allele with dominant allele and recessive allele with recessive allele. for these three traits, mendel observed that plants always produced progeny in a 3:1 ratio regardless of the genotypes and phenotypes of the parents. mendel predicted a 3:1 ratio because he was performing a trihybrid cross. the word root tri- means 3. mendel predicted that independently assorting traits in a trihybrid cross would behave the same way that they would if monohybrid crosses were conducted separately for each trait. submitrequest answer
Mendel predicted a 3:1 ratio of dominant to recessive phenotypes for each of the three traits in the trihybrid cross based on the principle of independent assortment.
This principle states that genes for different traits are inherited independently of each other and are passed on to offspring in a random manner. In a trihybrid cross, each trait has two possible alleles, one dominant and one phenotypes recessive. Mendel assumed that each allele traits had an equal chance of being passed on to the offspring, and that the alleles for each trait would be inherited independently of one another. Therefore, the probability of inheriting a specific combination of dominant and recessive phenotypes alleles for the three traits would be (1/2)^3 = 1/8. With 3 dominant alleles and 1 recessive phenotypes allele, this results in a 3:1 ratio of dominant to recessive phenotypes.
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which of the following statements is most correct? (mito: mitochondria) the electron transport chain -
In chloroplasts, protons are pumped into the stroma in the direction of the thylakoid space by the electron transport chain.
Pyruvate is promoted into the Krebs cycle within the inner mitochondrial membrane when oxygen is present. Protons are removed during the Krebs cycle and then injected back into the intermembrane gap of the mitochondria against its gradient. Pumping protons (hydrogen ions) through the intermembrane gap is the fundamental goal of moving electrons along the electron transport chain. As a result, the cell preferentially permits hydrogen ions to re-enter the mitochondrial matrix, where it utilises the gradient created to produce ATP.
Consequently, a final proton pump is developed, which directly pumps two protons into the mitochondria through the matrix and cytochrome complex IV.
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3. In the diagram below, which cells are involved in the process of reproduction?
cells 1 and 2
O cell 3, only
Ocells 2 and 3
Ocell 1, only
O
A Linear+Equations.pdf
Lineart Equations
1
2
3
Human reproduction depends heavily on the development of sex cells: A sperm cell and an egg cell mate during fertilization. Reproductive cells or gametes are other names for these sex cells. Male testicles and female ovaries both generate sperm and egg cells, respectively.
How are sex cells made (meiosis)?Human reproduction depends heavily on the development of sex cells: A sperm cell and an egg cell mate during fertilization. Reproductive cells or gametes are other names for these sex cells. Male testicles and female ovaries both generate sperm and egg cells, respectively. Sex cells are unique from other cells because, to put it simply, they only contain half of the genetic information that exists in the human genome. A complete set of genetic information is once again transferred when a sperm cell fertilizes an egg cell.Meiosis, a specific type of cell division, is the process through which sex cells are created. The original (parent) cell's genetic material is divided up twice, in contrast to the way that cells normally divide (mitosis).To Learn more About sex cells Refer To:
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You have identified a novel protein that associates with the plasma membrane. You do not know whether this protein is a peripheral or a transmembrane protein. You therefore analyze the primary amino acid sequence (listed in the three letter code) for the presence of a transmembrane domain.
Met - Asp - Leu - Lys - Ile - Pro - Gly - Val - Glu - Arg - Met - Phe - Leu - Ile - Ser - Lys - Gly - Thr - Asp - Tyr - His - Asn - Gln - Val - Asp - Met - Val - Gly - Pro - Asp - Glu - Gly - Ala - Ala - Ala - Val - Met - Arg - Trp - Lys - Cys - Met - Phe - Ile - Val - Val - Val - Thr - Val - Glu - Glu - Gly - Asp - Met - Val - Ala - Ile - Ile - Val - Leu - Pro - Lys - Arg - Trp - Tyr - Phe - Ala - Gln - Tyr - Ala - Val - Leu - Ile - Leu - Met - Ala - Trp - Leu - Val - Phe - Val - Ile - Leu - Ala - Arg - Lys - His - Ala - Val - Ile - Leu - Trp - Tyr - Ala - Gly - Gln - Gly - Asn - Arg - His - Cys - Lys - Met - Ser - Pro - Gly - Ala - Met - Asp - Ser - Glu - Ile - Leu - Met - Phe - Trp - Gly - Lys - Cys - Met - Leu - Trp - Phe - Arg - Met - Leu
How many potential transmembrane domains can you identify in this protein?
0
1
2
3
4
I'm really at a loss of words for this. There's more than 100 amino acids in this sequence, yet this is supposed to be a question that is supposed to be solved in 1 or 2 minutes. From what I gather, I think I'm suppose to count the number of long chains of hydrophobic amino acids. But, that will take a long time. Am I doing something wrong. There were similar questions posted but I can't decide on a single answer. Some say 2 domains and some say 4.
E)4
Because they are integrated over the length of the bilayer lipid membrane, transmembrane proteins are strongly linked to membranes.
Hydrophilic as well as polar amino acids and hydrophobic or non-polar amino acids are the two types of amino acids that make up this type of protein. Peripheral proteins are present in the structure, meaning they are not integrated into the cell membrane and are exposed to the intercellular fluid, even though they are weakly linked with the membrane. Because of this, it solely contains hydrophilic amino acids.
The hydrophobic amino acids in the protein's main amino acid sequence help identify it as a transmembrane protein. Methionine (Met), leucine (Leu), valine (Val), glycine (Gly), tryptophan (Trp), isoleucine (Ile), phenylalanine (Phe), proline (Pro), and alanine make up this group of amino acids (Ala)
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For an experiment with squash plants what be the different results?
The experiment using squash plants produce different results than other plants. This is because squash use self-pollination so they can't produce true breeding and produce recessive traits earlier.
Pollination involves the process of transfer of pollen grain to the stigma. And this transfer that occurs either within the same flower or from one flower to another flower of the same plant is self-pollination. The squash plants have a physically separate flowers. Hence, it is difficult for squash to self-pollinate. They require assistance or insect pollinators.
So they can't produce a true-breeding generation. This is because obtaining pure breeding in this plant is impossible. And the recessive trait will show up earlier or in F1 (first filial) or P (parental) generation.
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A scientist discovers a putative new life form and notes that the creature's body is bilaterally symmetrical and consequently satisfies the criteria for defining life in which of the following categories?
(a) Evolution.
(b) Growth and development.
(c) Order.
(d) None, symmetry is not a basic characteristic of life.
The correct option is D ; None, symmetry is not a basic characteristic of life.
When an animal's body plan can be divided along a line that separates the animal's body into nearly equal right and left halves, it is said to have bilateral symmetry.
Most animals have a line of symmetry that divides their body into left and right sides, as well as a "head" and "tail" in addition to a top and bottom.
Flatworms, common worms ("ribbon worms"), clams, snails, octopuses, crustaceans, insects, spiders, brachiopods, sea stars, sea urchins, and vertebrates are examples of species with bilateral symmetry. An animal's symmetry is often appropriate for its lifestyle.
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Based on Roe v. Wade, the second trimester of a pregnancy involves ______. a state's right to regulate abortion procedure in ways reasonably related to.
Based on Roe v. Wade, the second trimester of a pregnancy involves a state's right to regulate abortion procedure in ways reasonably related to.
it stated that for the first trimester of Pregancy, the decision for abortion can be taken by the physician or the women itself.
From the second trimester, the decision of abortion is usually taken on the basis of health of women before and after abortion or the faced consequences.
as for the second trimester, the state could regulate (but not outlaw) abortions in the interests of the mother’s health. as the fetus is viable, if the mother life is in danger there is a need to preserve life.
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what types of cells can viruses infect? please list and give a description of what each of those cells are.
Bacteria, archaea, fungi, plants, mammals, and even bacterial cells are all susceptible to virus infection. Living things develop, metabolise, and generate offspring. Viruses are able to multiply only with the assistance of their host cells.
The only place a virus can multiply is inside the live cells of a creature. Viruses are submicroscopic infectious agents. Animals, plants, and microorganisms such as bacteria and archaea are all susceptible to virus infection. Since Dmitri Ivanovsky's 1892 publication revealing a non-bacterial disease affecting tobacco plants and Martinus Beijerinck's 1898 discovery of the tobacco mosaic virus, more than 9,000 virus species have been characterised in detail out of the millions of different types of viruses in the environment. The most prevalent category of biological organism, viruses can be found in practically all ecosystems on Earth. Virolology, a branch of microbiology, is the study of viruses. A host cell is frequently compelled to create thousands of copies of the original virus quickly after becoming infected.
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in peap lants, the green color allele is dominant over the yellow color allele for seed coor and tall is the dominant allele in plant height. parents heterozygous for both traits are cross-pollinated. determine the frequency for the four different phenotypes of the offspring. a. tall plant, green seeds b. tall plant, yellow seeds, c. short plant, green seeds d. short plant, yellow seeds
The frequency for the four different phenotypes of the offspring can be determined using a Punnett square.
First, write the alleles for each parent along the top and left sides of the square.
Tt (tall) x Yy (green)
Next, fill in the boxes of the square by combining one allele from each parent.
TY Ty
tY ty
Each box represents a possible genotype for the offspring, with the letters representing the alleles. T is the dominant allele for tall, while Y is the dominant allele for green seeds.
The resulting genotypes:
TY: tall plant, green seeds.
Ty: tall plant, yellow seeds.
tY: short plant, green seeds.
ty: short plant, yellow seeds.
The frequency of each phenotype will depend on the number of each genotype present in the offspring. The frequency of each genotype can be calculated by counting the number of each genotype and dividing by the total number of offspring.
In this case, the frequency for each phenotype:
tall plant, green seeds (TY) = 1/4
tall plant, yellow seeds (Ty) = 1/4
short plant, green seeds (tY) = 1/4
short plant, yellow seeds (ty) = 1/4
It is a 1:1:1:1 ratio for all the four different phenotypes.
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which of the following best represents the dna of the two daughter cells produced when a bacterial cell with this particular mismatch replicates its dna and divides? responses
As soon as replication errors become mutations. Incorrectly matched nucleotides that are still present after mismatch repair experience irreversible mutation following the subsequent cell division.
This is due to the fact that once such faults are established, the cell no longer recognizes them as errors.
Mutations may happen if errors in DNA replication are produced and not immediately corrected. Mutations may also be brought on by environmental factors like smoking, sunlight, and radiation.
DNA replication is semi-conservative. This suggests that each new DNA molecule has both a strand that was created recently and a strand that was inherited from the parent molecule (daughter strand).
As DNA polymerase requires an RNA primer, DNA replication will start right after the RNA.
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Which of the following is a characteristic of nonrenewable energy sources that distinguishes them from renewable energy sources?
answer choices
The construction of power plants that use nonrenewable energy sources is typically more expensive than the construction of those that use renewable energy sources.
Nonrenewable energy sources are typically less harmful to wildlife and ecosystems than renewable energy sources are.
Nonrenewable energy sources typically require additional new technology in order to be used than renewable energy sources do.
Nonrenewable energy sources typically take a longer time to replenish than renewable energy sources do.
The correct option is D ; Nonrenewable energy sources typically take a longer time to replenish than renewable energy sources do.
Nonrenewable energy resources, such as coal, nuclear, oil, and natural gas, are in short supply. This is mainly owing to the length of time it takes to replace them. Renewable resources replenish themselves organically and in a relatively short period of time.
They do not regenerate and are not replenished or renewed. They include the fossil fuels we use to generate energy (natural gas, coal, and oil). Minerals, which are utilized to create metals, are likewise nonrenewable natural resources. Nonrenewable natural resources are those that cannot be replaced in a person's lifetime.
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