Transcription is the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA
A form of single-stranded RNA involved in protein synthesis is known as messenger RNA (abbreviated as mRNA). During transcription, mRNA is created from a DNA template. The purpose of mRNA is to transport protein information from DNA in a cell's nucleus to the cytoplasm, or watery interior, of the cell. There, the machinery responsible for making proteins reads the sequence of the mRNA and converts each three-base codon into an amino acid that belongs in a protein chain.
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a single na /k atpase pump is present in the plasma membrane of an artificial cell with an initial cellular environment of 1000 sodium ions and 1000 molecules of atp inside the cell, 1000 potassium ions outside the cell, and a net charge differential across the plasma membrane of 0. assuming the only changes in the cellular environment are a result of the pump's actions, what would be the number of na , k and atp molecules inside the cell after 100 cycles of the pump and what would be the net charge differential (inside-outside) across the plasma membrane?
700 Na+; 200 K+; 900 ATP and −200 charge differential (inside-outside)
What is plasma membrane?
The boundary between a cell's inside and outside is created by the plasma membrane, which is a network of lipids and proteins. It is also known as the cell membrane plainly. The plasma membrane's primary job is to shield the cell from its surroundings. It controls the materials that enter and leave the cell and is semi-permeable. All living things have plasma membranes in their cells.Na/K pump across plasma membrane:
This protein pump, also known as the Na+/K+ pump or Na+/K+-ATPase, is located in the cell membrane of neurons (and other animal cells). In a ratio of 3 sodium ions out for every 2 potassium ions brought in, it functions to transport sodium and potassium ions across the cell membrane. The process aids in stabilizing membrane potential, and the pump is crucial in establishing the circumstances required for action potentials to fire.Hence, 700 Na+; 200 K+; 900 ATP and −200 charge differential (inside-outside) is the answer
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what enzyme could seal a nick in one strand of a double-stranded dna molecule by creating a sugar-phosphate bond between the adjacent, unjoined nucleotides?
By forming a sugar-phosphate bond between adjacent, unjoined nucleotides, the DNA Ligase enzyme could seal a nick in one strand of a double-stranded DNA molecule.
DNA ligase is a particular type of enzyme, a ligase, (EC 6.5. 1.1) that promotes the touching of DNA filaments together by catalyzing the establishment of a phosphodiester bond. DNA ligases play an essential part in claiming genomic completeness by touching breaks in the phosphodiester foundation of DNA that happen all the while copy and recombination, in addition to DNA damage and allure repair.
Deoxyribonucleic acid is a polymer calm of two polynucleotide chains that coil about each other to form a double loop. The polymer gives hereditary commands for the incident, functioning, tumor, and duplication of all popular animals and many viruses. DNA and ribonucleic acid are deoxyribonucleic acids.
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Consider an enzymatic reaction in which the initial concentration of substrate is low. If the amount of enzyme is held constant, but the amount of substrate is increased, the rate of an enzyme catalyzed reaction will
a. stay the same
b. decrease at first, then increase in a linear fashion.
c. be inhibited by the higher concentrations of substrate.
d. increase at first in a linear fashion, then remain at a constant high rate.
e. increase in an exponential fashion.
If the amount of enzyme is held constant, the rate of an enzyme catalyzed reaction will e. increase in an exponential fashion.
An enzyme-catalyzed reaction involving two substrates The two substrates are brought together in the correct direction and location to react with one another using the template provided by the enzyme.
By changing the structure of their substrates to resemble that of the transition state, enzymes help speed up processes. The lock-and-key paradigm, in which the substrate perfectly fits into the active site, is the most basic explanation of how an enzyme interacts with a substrate.
However, substrate binding frequently modifies the configurations of both the enzyme and substrate, a process known as induced fit. In these situations, the substrate's conformation is changed to more closely approximate that of the transition state.
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explain the three steps that were used in this lab to determine the sickle cell genotype for individuals of the ryan family
The three steps that were used in this lab to determine the sickle cell genotype for individuals in the ryan family were blood collection, DNA amplification, and PCR. Tests for sickle cell anemia are used to diagnose sickle cell anemia and identify sickle cell trait carriers. Sickle cell anemia is an inherited disorder that causes the production of an abnormal hemoglobin called hemoglobin S. Hemoglobin is a protein in red blood cells that carries oxygen from the lungs throughout the body.
What is the cause of sickle cell anemia?Sickle cell anemia is caused by a genetic mutation, responsible for the deformity of red blood cells. To be a carrier of the disease, the altered gene must be transmitted by the father and mother.
Sickle cell anemia is a hereditary disease (passed from parents to children) characterized by alteration of red blood cells, making them look like a sickle, hence the name sickle cell. These cells have their membrane altered and rupture more easily, causing anemia.
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what evidence (if any) does not support the hypothesis that crm b has a function associated with it? (mark all that apply) only coding regions of the genome have a function
Hemoglobin genes and the cis-regulatory modules that regulate them. This section of the genome is the focus of your research (CRMs).DNA components where proteins can connect to transcription factors.
Different developmental periods occur when these genome are expressed. Adults express HBB and HBD, but fetal development expresses HBG1 and HBG2, and embryonic development expresses HBE1. A transcription factor called GATA1 is present in blood cells. A specialized protein called a transcription factor enters the nucleus of a cell to control gene expression. To activate or inhibit genome expression, transcription factors such as GATA1 must bind to particular regulatory DNA sequences (such as promoters).
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Genetic modification makes pest-resistant corn, but genetically modified corn may be unhealthy. what type of sentence is this?
Although genetic engineering creates pest-resistant corn, it might also be unhealthy. This sentence is compound.
Why are some individuals concerned that consuming genetically modified food could be dangerous?Always less nourishment is present in plants whose DNA has been altered. Reduced genetic variety affects both plants and animals as a result of genetic alteration. Long-term research is insufficient to substantiate the safety of this food.
What constitutes a compound complicated sentence, specifically?A compound-complex sentence has one or more dependent clauses and at least two independent clauses. Despite preferring romantic movies, Mitchell rented the most recent spy thriller and thoroughly enjoyed it.
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what is the main effect of hiv infection? poor suppressor t-cell function poor natural killer cell function poor helper t-cell function poor b-cell function
The main effect of HIV infection is Poor helper T-cell function. The correct answer is option (c).
HIV infects a restricted number of container types in the frame, including a subdivision of lymphocytes named CD4+T lymphocytes (as known or named at another time or place T-assistant containers or CD4+T cells). The CD4+T containers are inevitable for rational invulnerable functions. Among other functions, the CD4+T container makes unfamiliar antigens and helps turn on antitoxin-producing B lymphocytes.
Helper T-cells are a type of invulnerable cell. They're individual of the main types of containers created by your organ meat. Helper T-cells sense when there's contamination in your material. They mobilize added immune containers to be in a dispute or fight the contamination. These T-containers are a fundamental part of your adaptive invulnerable reaction.
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elomerase binds to the overhang at the end of a chromosome. once bound, and using its template as a guide, it begins catalyzing the of deoxyribonucleotides to the overhang in the blank direction, lengthening the overhang. this creates a single strand of dna that is then used as a template on which primase, polymerase, and ligase add deoxyribonucleotides to the lagging strand in the blank direction, restoring the lagging
By producing telomerase, an enzyme that lengthens chromosome telomeres, some cells can stop the shrinking of their telomeres.
An enzyme that can create DNA using RNA as a template is called an RNA-dependent DNA polymerase, or telomerase. A cellular enzyme that lengthens telomeres with DNA to keep cells alive (the ends of chromosomes).
The telomeres become shorter and lose a small quantity of DNA with each cell division. The chromosomes deteriorate over time, and the cells eventually perish. Telomerase aids in preventing this from occurring. Compared to most normal cells, cancer cells typically have more telomerase.
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home-canned low-acid foods, such as beans and corn, may be contaminated with clostridium botulinum, a bacterium that produces a dangerous toxin. to destroy the toxin, the food should be
In order to destroy the toxin of the bacteria in the home-canned food, it should be boiled for 10 minutes before tasting or eating (option D).
What is sterilisation?Sterilisation is the process of treating something to kill or inactivate microorganisms, usually by heating. Sterilisation could also be a procedure to permanently prevent an organism from reproducing.
Sterilization is different from processes such as; disinfection, sanitization and pasteurization, in that those methods reduce rather than eliminate all forms of life and biological agents present.
According to this question, home-canned low-acid foods, such as beans and corn, may be contaminated with a bacterium called Clostridium botulinum, which produces a dangerous toxin.
This toxin is injurious to health of food consumers, hence, needs to be removed. To do this, the food needs to be heated to a certain temperature before consumption.
Therefore, boiling the food for 10 minutes before tasting or eating is a way to remove the toxins in the food.
The options to the incomplete question is as follows:
A. frozen for 2 days and then thawed in the refrigerator before eating
B. heated in a microwave oven for 5 minutes
C. chilled for at least 24 hours before serving
D. boiled for 10 minutes before tasting or eating
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pleace is science is today
Answer:
Yes
Explanation:
Celebrated every 10 November, World Science Day for Peace and Development highlights the significant role of science in society and the need to engage the wider public in debates on emerging scientific issues. It also underlines the importance and relevance of science in our daily lives.
sodium is pumped into the medulla from the thick segment of the loop of henle. if the concentrations of the fluid and medulla are equal, what mechanism would produce the movement of sodium into the medulla?
The mechanism that would move the sodium into the medulla is an active transport mechanism across the membrane.
Active transport is the term that describes the movement of molecules or ions across a cell membrane against the concentration gradient. It requires cellular energy in the form of ATP to be done.
One case of active transport in the human body is the sodium-potassium pump. It's a mechanism in the form of an enzyme that maintains osmotic equilibrium in cells. One place where it's found is in the kidney around the medulla and the loop of Henle. When the concentration of the fluid and medulla are equal, sodium-potassium transport work to maintain the proper concentration of K+ and Na+ ions inside and outside of the cells.
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what cellular macromolecules make up the complement pathway? what cellular macromolecules make up the complement pathway? carbohydrates lipids nucleic acids proteins
The complement pathway is composed of large macromolecules of cellular proteins. Protein synthesis Proteins are created from amino acids with the aid of genetic information.
The specific amino acid sequence of each protein is determined by the nucleotide sequence of the gene that codes for that protein. Proteins are enormous molecules made up of the building blocks known as amino acids. Carbon, hydrogen, oxygen, nitrogen, and sulphate are all elements found in proteins. One or more twisted and folded strands of amino acids combine to form protein macromolecules, which are substantial, complicated entities. A protein or nucleic acid is an example of a macromolecule, which is a very large macromolecules crucial to biophysical processes. It consists of thousands of atoms that are covalently linked. Many macromolecules are made up of smaller molecules known as monomers in polymer form.
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which is a function of tracheids? a) photosynthesis b) production of sex cells c) water conduction d) food storage
Water conduction is one of the tracheid's functions. Answer (c) is the right choice.
The ability of water to conduct an electrical current is measured by its conductivity. Conductivity rises with salinity because dissolved salts and other inorganic compounds carry electrical current. At 20 °C, water has a thermal conductivity of 0.598 W/m-K. Pure water does not conduct electricity and is a great insulator. Water that contains contaminants, such as salts, can carry electricity. Salts divide into various electrically charged atoms known as ions when they are dissolved in water. Positive Na ions and negative Cl ions are the components of salts, such as sodium chloride (NaCl).
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if a scientist recorded the size, birth rate, and age structure of an owl population over the last 20 years, he is most likely a(n): please choose the correct answer from the following choices, and then select the submit answer button. answer choices botanist. evolutionary biologist. embryologist. demographer. mathematician.
If a scientist recorded the size, birth rate, and age structure of an owl population over the last 20 years, he is most likely e)demographer. So, correct option is e.
Demographer work is to study the characteristics of human populations, such as size, growth, density, distribution, and vital statistics. There are sure abilities that numerous demographers have to achieve their obligations.
By researching resumes, we had the choice to restrict the most generally perceived capacities for a person here. We found that a great deal of resumes recorded actual endurance, relational abilities and insightful abilities. On the off chance that you're keen on turning into a demographer, perhaps the earliest thing to consider is how much instruction you want.
53.8% of demographers have a four year college education. As far as advanced education levels, we viewed that as 19.2% of demographers have graduate degrees. Despite the fact that most demographers have a professional education, becoming one with just a secondary school degree or GED is conceivable.
Hence, correct option is e.
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(Complete question) is:
If a scientist recorded the size, birth rate, and age structure of an owl population over the last 20 years, he is most likely a(n): please choose the correct answer from the following choices, and then select the submit answer button. answer choices
a)botanist.
b)evolutionary
c)biologist.
d)embryologist
e)demographer
f)mathematician.
What would be the consequence of ectopically expressing hoxd10 throughout the developing mouse limb bud?.
The Hox gene network plays numerous roles in the development of vertebrate limbs. One of its primary purposes is to encode positional data, creating a "Hox" code for the arrangement of the structures along the long axis of the limb.
The Hox genes are key players in the series of interactions that allow morphologically distinct regions to develop in segmented animals. In fact, one of the earliest triggers that cause the segment to develop into a part of the head is the activation of a Hox gene from the 3' end.
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how are these two lizards adapted to their environment
The given types of lizards has the skin which matches their surroundings. They will not be easily identified by their predators.
What is environmental adaptations?Each living organism has their own adaptations to live in the environment. Which is based on various factors such as their color, skin type, behaviors etc. which make them easy to survive in the environment.
For instance, the cactus plant is adapted to live in the deserts without water because, they have the ability to store water content in their stems. Chameleons are able to change their color which matches their surroundings. Thus, they can easily hide from the predators.
The given lizard one with the green color is living under the green leaves and catch pray at nights thus because of their color they can hide under the leaves and plants from predators.
Similarly, the grey colored lizard is found in the dry areas where the mud color matches with its color. Hence, these types of lizards are adapted to the dry areas.
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which of the following statements about macrophages is false? choose one:a. macrophages present microbial peptide antigens on major histocompatibility complexes.b. macrophages are phagocytic.c. macrophages are involved only in innate immunity.d. macrophages differentiate only from monocytes.
The statement about macrophages that is false is that they are only involved in innate immunity. The correct answer s option(c).
Macrophages are a type of white blood cell that encloses and kills microorganisms, removes dead cells, and provokes the action of added invulnerable method cells. Macrophages play an important part in privilege and immune answers. They acquire a protective role shown by their talent to carry on the phagocytosis of groupies and bacteria.
Innate immunity is the explanation whole with that you were innate. It protects you against all antigens. Innate immunity involves obstacles that hold harmful matters from introducing your material. These barriers form the first line of explanation in the invulnerable response.
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A relatively small area with numerous endemic species and a large number of endangered or threatened species is called a _________.
A relatively small area with numerous endemic species and a large number of endangered or threatened species is called a endemic species
36 regions where successful species conservation can have a significant impact on global biodiversity conservation.Areas with high concentrations of endemic species (species found nowhere else on Earth) and high habitat loss are often referred to as 'hotspots' in the area and are therefore naturally found in that location. Thus, endemic species are species that inhabit limited areas such as mountains, lakes, and islands. Habitat loss is a major cause of high extinction rates. Other causes include habitat change, overexploitation of wildlife for commercial purposes, introduction of harmful alien species, pollution and the spread of disease.
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What anatomical region would the stoma created by the descending colostomy be in?.
The descending colostomy is positioned on the lower left side of the abdomen in the descending colon.
Where would the colostomy be placed in the abdomen?People who require ileostomies (stomas made from the final segment of the small intestine) typically have their stomas placed in the right lower quadrant of the abdomen, whereas those who need colostomies (stomas made from a segment of the large intestine) typically have their stomas placed in the left lower quadrant.
Where does stoma form?An area of your large, small, or urinary tract that has been brought through the surface of your abdomen (belly) and subsequently folded back is known as a stoma. Your medical condition will determine the location.
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what does a community contain that a population does not
Answer:
A community and a population have very different organisms, and I beilive a population has more people, while a community is more of what people have same common interest
Explanation:
hope this helps, sorry if i didnt answer your question
Cell division is the process of taking a parent cell and splitting it into 2 new genetically identical daughter cells. All organisms go through the process of cell division. What do bacteria use cell division for and how?.
Bacteria divide their cells through a process called bacterial binary fission. Learn the binary fission process, including how to duplicate bacteria.
What is the procedure for dividing a cell into two called?A vital process for life is mitosis. A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes.
Why and how do bacteria use cell division.
However, in the case of a bacterium, cell division serves purposes other than simply producing more cells for the organism. Instead, it is how bacteria multiply, or increase the number of bacteria in a population. While binary fission and mitosis share some characteristics, they also diverge from each other in some significant ways.
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class b mutants have sepals in whorls 1 and 2 and carpels in whorls 3 and 4. genes in class b control the development of which whorls?
petals (whorl 2), stamens (whorl 3), petals and stamens (whorls 2 and 3), stamens and carpels (whorls 3 and 4) and sepals and carpels (whorls 1 and 4).
A flower's male reproductive organ is represented by stamens. The production of the stamen with distinct anther tissues, followed by anther dehiscence and pollination, are all steps in the complex biological process by which the male reproductive system develops. The flower's reproductive organ that produces pollen is the stamen. The androecium is made up of all the stamens.
The fourth whorl of the flower, located in the centre, is the carpel. Style, stigma, and ovary the female elements of a flower make up the majority of it. There may be one or multiple carpels in a single bloom. carpel, a seed-bearing structure that is part of the innermost whorl of a flower and resembles a leaf. The pistil might have just one carpel or many.
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How could an activator influence gene expression at a promoter far away from the place that it binds dna?.
Emotions influence autonomic reactions primarily through integration in the ________.
Emotions influence autonomic reactions primarily through integration in the d)hypothalamus. So, correct option is d.
The hypothalamus is a piece of the mind that contains various little cores with different capabilities. One of the main capabilities is to connect the sensory system to the endocrine framework through the pituitary organ. The nerve center is situated beneath the thalamus and is essential for the limbic system.[1] In the wording of neuroanatomy, it frames the ventral piece of the diencephalon. All vertebrate cerebrums contain a hypothalamus.[2] In people, it is the size of an almond.
The hypothalamus. is answerable for managing specific metabolic cycles and different exercises of the autonomic sensory system. It combines and secretes specific neurohormones, called delivering chemicals or hypothalamic chemicals, and these thus invigorate or repress the emission of chemicals from the pituitary organ. The nerve center controls internal heat level, hunger, significant parts of nurturing and maternal connection ways of behaving, thirst, weariness, rest, and circadian rhythms
Hence, correct option is d.
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(Complete question) is:
Emotions influence autonomic reactions primarily through integration in the ________.
a. lateral geniculate of the thalamus.
b. inferior colliculus.
c. lateral horn of the spinal cord.
d. hypothalamus.
over the pedigree you constructed in part a.based on the inheritance pattern, which mode of inheritance must be the cause of galactosemia?
Galactosemia is the cause of an autosomal recessive mode of inheritance.
A series of genetic diseases known as galactosemia, or "galactose in the blood," affect how well the body can utilise and make energy from the sugar galactose. Undigested sugars accumulate in the blood when galactose-containing foods or beverages are consumed by people who have galactosemia.
All dairy products (milk and anything produced from milk), several infant formulae, some fruits and vegetables, and many other meals contain galactose. The lack of any one of three enzymes, which can result from genetic alterations in several genes, can impede the body's capacity to metabolise galactose.
Different types and degrees of symptoms are caused by genetic variations in the three genes. All forms of galactosemia are autosomal recessive in inheritance.
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Besides protecting vital organs, what are two other functions of the bones of the skeletal system?
A) making blood cells and storing calcium
B) making cartilage and red blood cells
C) making cartilage and storing calcium
D) making blood cells and storing potassium
Answer:
A) making blood cells and storing calcium
Explanation:
it is correct. i did the quiz 100%
Answer:
I hope this helps.
Explanation:
What kind of life will be given to those who acknowledge Jesus as Lord and Savior?
Answer:
And so when we talk about accepting Jesus, that means that we are being saved from being trapped in sin, which results in eternal punishment. And it's that faith in Jesus that saves us by his grace. He died and rose again just to pay the price for our sins.
5. A tissue is composed of a group of
a. Similar cells
b. Related organelles
c. Organ systems
d. Related organs
Answer:
a.similar cells.
Explanation:
hope it is correct.
what is the phenotypic ratio results from a cross between a homozygous recessive individual and a heterozygous individual
The phenotypic ratio from crossing monohybrid between a homozygous recessive individual and a heterozygous individual is 1 : 1.
The recessive homozygous gene is the result of the fusion of two recessive genes from the two sex cells. The symbol for a recessive homozygous gene is two lowercase letters aa or aabb.
Heterozygous is a gene that has a pair of different alleles, so one is dominant and the other is recessive, so it is written with a combination of uppercase and lowercase letters, such as Aa or AaBb.
Crossing between a homozygous recessive (aa) individual and a heterozygous individual (Aa):
a a
A Aa Aa
a aa aa
Genotype ratio → Aa : aa = 1 : 1
Phenotype ratio → 1 : 1
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when the pancreas does not produce any insulin or is resistant to insulin the disorder is called
Type 2 diabetes caused When the pancreas does not produce any insulin or is resistant to insulin
When blood glucose levels are elevated but not high enough to be classified as diabetes, prediabetes results. Those who already have some insulin resistance are more likely to develop prediabetes. Type 2 diabetes, the most prevalent form of the disease, can develop from prediabetes. T2D is characterized by excessive blood glucose levels brought on by insufficient insulin production by the pancreas or insulin resistance by the body.
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