Answer:
a. Naked dna
f. nucleosome
e. solenoid
g. loop domain
d. chromatid
c. chromosomes
b. metaphase
Explanation:
The naked DNA consists of the DNA molecule not associated with proteins.
A nucleosome is an octamer of histone proteins (i.e., dimers of H2A, H2B, H3, H4) associated with DNA.
A solenoid is a chromatin fiber consisting of 30 nanometers (nm), it represents the secondary structure of the chromatin.
The chromatin fibers are organized into loops (300 nm) that represent the tertiary structure of the chromatin. These loops enable to package chromosome segments consisting of about 100 kilobases (kb).
The sister chromatids are two identical DNA-based structures that remain joined together by the centromere to form a single chromosome (700 nm).
what must happen before meiosis can begin A. the cell splits into four parts B. the chromosomes must replicate C. four haploid cells are produced D.DNA must duplicate four times
Answer:
B. the chromosomes must replicate
Answer: DNA replicates and forms retreads
Explanation:
In In what organ do sperm develop
Answer:
They develop in the TESTICLES.
Explanation:
TESTICLES are the two OVAL ORGANS that produce SPERM in MEN and other mammals, enclosed in SCROTUM behind the PENIS.
The sex of the person that you are attracted to would
determine your
sexual identification.
o gender-role attractions
sexual orientation.
sexuality
Answer:
Gender role attraction determine your sexual identificaton.
Explanation:
At a continental-continental convergent boundary, _____. a, both continental plates are subducted b. one continental plate is subducted below the other c. folded mountains are formed d. fault-block mountains are formed
Answer:
I dont get it???
Explanation:
Answer:
I think both continental plates are subducted
is solar energy a renewable source of energy
Answer:
Solar energy is a renewable and free source of energy
Explanation:
Solar Energy or Solar Power is sustainable and totally inexhaustible
Answer:
Yes
Explanation:
Solar energy is a renewable source of energy. Solar panels take in the energy produced by the Sun and convert it into electricity.
Which of the following are biomolecules? (check all that apply). *
carbohydrates
lipids
proteins
nucleic acis
Answer:
all of them
Explanation:
answer:E all of the above
n which environment would mineral formation caused by high pressures and high temperatures most likely occur?
Answer:
when the flood or landslide flows theremnants of plants and animals are taken to the sea and ocean then due to high pressure and temperature they forms fossils in sedimentary rocks and due to the anaerobic condition under the fosdils gets decayed and it forms the layer of mineral. so we can say thatminerals are formed in anaerobic condition under sedimentary rocks.
g What term refers to probes that will hybridize only with a complementary sequence and not with other sequences that may vary by as little as one nucleotide
Answer: Here are the options which are not given.
A) generation-specific probes
B) short, variable repeats
C) VNTRs
D) microsatellites
E) allele-specific oligonucleotides (ASOs)
E) allele-specific oligonucleotides (ASOs)
The correct Option Is E.
E) allele-specific oligonucleotides (ASOs)
Explanation:
Allele-specific oligonucleotides is a small synthetic DNA that proves which will hybridize with a only a complementary sequence of DNA and not with other sequence that may be different even with a nucleotides.
The DNA probe must be single stranded so that the desired Gene segment will be located.
The probe attach to the segment of DNA which has nucleotides complementary to its own.
Allele-specific oligonucleotide hybridization, or dot blotting, is a technique use to test known mutations.
Choose the description of an event that does NOT occur during the cross bridge cycle. Group of answer choices Energized myosin heads bind troponin. ATP hydrolysis allows for cross bridge formation. ADP is released at the end of the power stroke. A new ATP binding causes cross bridges to release.
Answer: A myosin head binds to which molecule to form a cross bridge? ... Excitation-contraction coupling is a series of events that occur after the events of the ... performs a power stroke, then binds to ATP in order to detach and re-energize.
Explanation:
What best describes the behavior of nonconservative elements in seawater?
The given question is incomplete due to missing options, however, the options for the question as follows:
A. Nonconservative elements are reactive in seawater and have a long residence time.
B. Nonconservative elements are reactive in seawater and have a short residence time.
C. Nonconservative elements are non-reactive in seawater and have a short residence time.
D. Nonconservative elements are non-reactive in seawater and have a long residence time.
Answer:
The correct answer is option C.
Explanation:
Non conservative components are components that enter the ocean water and have little concentration in the sea and show spatial variations. These components have short home time that is short replacements time and they are non responsive.
Constituents, for example, phosphate, nitrate, and different supplements, and broke up oxygen, carbon dioxide, and so on are non-conservative on the grounds that their concentrations are later altered by chemical reactions in the ocean.
Thus, The correct answer is option C.
I was wondering if anyone could help with this? The photo is posted below.
Answer:
The answer is option C.
Hope this helps you
Like with living primates, we are able to definitively distinguish catarrhines from platyrrhines in the fossil record by what feature
Answer:
The structure of their noses.
Explanation:
Catarrhines are distinguished from platyrrhines by several traits but the main distinctive feature between them, is the structure of their noses. This forms the basis of their names.
Platyrrhines are characterized by laterally-placed, rounded nostrils or flat-nosed while catarrhines have narrow, downward-facing nostrils or hooked-nosed.
Another distinguishing feature include their dental formulation which is 2.1.2.3 in catarrhines and 2.1.3.3 in platyrrhines.
The skull structure of catarrhines have frontal bone which make contact with the sphenoid bone unlike the platyrrhines.
Generally, catarrhines are much bigger in size than platyrrhines.
difference between plant and animal cyanide resistance respiration.
Answer:
The cyanide resistant respiration differs in plants as oxidation of reduced coenzyme continues even in the presence of cyanides.
Explanation:
The mitochondrial is the electrons through which the animals and plants perform the aerobic exercise and is blocked by the release of the cyanides that stops the activity and is known as cyanide sensitive respiration Plant mitochondria is different from the animal as they both have different oxidase system pathways. Cyanide resistant is responsible for the climacteric in fruits and for the generate heat in thermogenic tissues.If the scientist had collected 20 dung samples, would you expect more bands, fewer bands, or the same number of bands on the gel?
Answer:
The expectations of the bands will be more on the gels.
Explanation:
One sample provides several sizes and thickness bands in the gel electrophoresis according to the size of fragments that run in it. An individual would expect more bands due to the increase in the number of samples which is 20 samples now.
An increase in the number of samples produces more bands. So one can easily expect more bands from the 20 samples. Scientists would get more bands on the gels.
Thus, the expectations of the bands will be more on the gels.
If the scientist collects 20 dung samples ; we should expect more band on the gel
Given that each dung sample has varying sizes and varying thickness of bands in the gel electrophoresis which depends on the size of fragments contained in it. Therefore when a number of dung samples ( 20 ) are collected it is only logical that the number of bands on the gel will increase ( i.e. you should expect more band on the gel ).
Hence we can conclude that If the scientist collects 20 dung samples we should expect more band on the gel .
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Although your question lacks some data a general answer within the scope of your question is provided
Humans breathe in oxygen and release ____ gas.
Answer:
Carbon
Explanation:
Reverse photosynthesis
Answer:
carbon dioxide
Explanation:
our body changes it
To which domain does the animal kingdom belong? Bacteria Archaea Eukarya
Answer:
The correct answer is Eukarya.
Explanation:
The kingdom Animalia is one of four Kingdoms in the Domain Eukarya. This domain is further subdivided into the Kingdoms Protista, Plantae, Fungi, and Animalia.
Answer:
Eukarya is it
Explanation:
Supposed you saw a small organism move across your book would you conclude that this organism was muticellular or unicellular?
Answer:
i would conclude it as a multicellular organism because i can see it as multicellular organism can only be seen and unicellular organism can only be seen in microscope.
hope u get that..
Answer:
multicellular
Explanation:
If I saw a small organism move across my book, I would conclude that the organism is multicellular. Multicellular organisms can be seen, unicellular organisms like bacteria cannot be seen through the naked eye.
Carolus Linnaeus Group of answer choices developed theories of natural selection. was a proponent of evolutionary change. established a binomial system of classification for plants and animals. was a supporter of Charles Darwin. opposed all notions of fixity of species.
Answer:
1- was a proponent of evolutionary change.
2- established a binomial system of classification for plants and animals
Explanation:
Carolus Linnaeus was a Sweden naturalist that is considered to be the creator of the modern taxonomy. He created a dichotomic system to classify species, in which species are fixed entities without phenotypic modifications across time, this concept being contrary to Darwin's ideas. Linnaeus published his nomenclature botanical system in the book "Species Plantarum", which is nowadays a reference book for plant nomenclature.
Research has discovered that for some individuals one challenge to maintaining weight loss is that after losing weight lipoprotein lipase activity in their adipose tissue is .
Answer: Low.
Explanation:
Lipoprotein lipase or LPL is an enzyme that hydrolyzes triglycerides of low density lipoproteins found in food, and breaks them down to free fatty acids and glycerol. Then they are released into muscle and fat tissue. Without this enzyme, the fat particles would accumulate in the blood. Particularly, lipoprotein particles called chylomicron transport dietary lipids from the intestines to other locations in the body. So these complex, lipids and chylomicron, accumulate in blood.
Fats are a type of nutrient obtained from food. It is essential to eat some fats, although it is also harmful to eat too much. The fats in food give the body the energy it needs to work properly. And, during exercise, the body uses the calories from the carbohydrates that have recently been eaten, but after 20 minutes, exercise then depends on the calories from fat to continue.
So, if the activity of this enzyme is high, the fat in the food is broken down and the person would not gain weight (always considering that there is a correct diet and exercise) On the other hand, if the activity of the protein is low, large amounts of fat accumulate in the blood.
What are the differences between photosystem l and photosystem ll?
Answer:
in ps1, reaction centre is p700
in ps2, reaction centre is p680
Label the figure ,illustrating the functional classification of neurons.the orange arrows show the direction of impulse conduction
Answer:Image in attachment.
From the left side to the right in sequence
1. sensory receptors→peripheral nervous system→(bipolar neurons;sensory/motor neuron) → CNS-interneurone→motor neuron →effectors.
Explanation:
The sequence of actions represents the reflex pathways for the transmissions of action potential in living organisms. It is therefore called a reflex arc.
Its represent the transmission of sensory impulses from the peripheral nervous systems through the sensory neurons, to the CNS(brain and spinal cord) as it enters at the dorsal roots and the transmission of responses to the defectors, gland and muscles, for effective responses.
The brain and spinal cords process these information,the brain mediates the information,while the spinal cord serves as the neuronal conduits for the transmission of the impulses through its ventral roots to the effectors via the motor neuron.
PLEASE HELP. DONT ANSWER IF YOU DONT KNOW. Name any three specifications that reduce carbon dioxide expenditure and promote biodiversity.
Answer:
A carbon footprint is the total greenhouse gas (GHG) emissions caused by an individual, event, organization, service, or product, expressed as carbon dioxide equivalent.[1] Greenhouse gases, including the carbon-containing gases carbon dioxide and methane, can be emitted through the burning of fossil fuels, land clearance and the production and consumption of food, manufactured goods, materials, wood, roads, buildings, transportation and other services.[2]
In most cases, the total carbon footprint cannot be calculated exactly because of inadequate knowledge of and data about the complex interactions between contributing processes, including the influence of natural processes that store or release carbon dioxide. For this reason, Wright, Kemp, and Williams proposed the following definition of a carbon footprint:
Specifications that reduce carbon dioxide expenditure and promote biodiversity are as follows:
1. Provide tree plantation through urban afforestation.
2. It has low concentration of carbon dioxide as plants absorb this gas and release oxygen
3. By promoting fruits and shade for the neighborhood.
What is Carbon Dioxide?Carbon dioxide is defined as the chemical compound which is made up of molecules each containing a carbon atom bonded twice to two oxygen atoms and is found in the gaseous state at room temperature. In air, carbon dioxide is transparent to visible light but absorbs infrared radiation which acts as a greenhouse gas.
This is a minor component of the Earth's atmosphere at about 3 volumes in 10,000 employed by plants in the combustion of carbon-containing material, in fermentation, and in the respiration of animals and in the photosynthesis of carbohydrates.
Thus, specifications that reduce carbon dioxide expenditure and promote biodiversity are as follows:
1. Provide tree plantation through urban afforestation.
2. It has low concentration of carbon dioxide as plants absorb this gas and release oxygen
3. By promoting fruits and shade for the neighborhood.
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why did mendel use pea plants in his experiments A. they produced quickly B. they are all male C. they have no alleles D. they are haploid organisms
Answer:
They produce quickly
Explanation:
Mendel chose pea plants for his experiments because they are easy to raise, have many offspring per mating, can fertilize themselves and have varieties in genotype and phenotype that are easily observable. These characteristics make pea plants ideal in the study of genetics and heredity.
As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during cell division, the structure of the chromosomes changes.Answer the three questions for each phase of the cell cycle by dragging the yes and no labels to the appropriate locations in the table.Note: Assume that by the end of the M phase, the parent cell has not yet divided to form two daughter cells.Are sister chromatid present in all or part of this phase?Is the DNA condensed in all or part of this phase?Does the cell contain twice as much DNA in this phase as it did in the G1 phase?
Answer:
Conditions:
Sister chromatids present in all or part of phase? ANSWERS BELOWDNA condensed in all or part of phase? ANSWERS BELOWDNA content per cell doubled in all or part of phase? ANSWERS BELOW**image also provided below for further clarification - all rights reserved to Mastering Genetics**
Explanation:
Conditions:
G1: no, S: yes, G2: yes, Beginning of M: yes, End of M: noG1: no, S: no, G2: no, Beginning of M: yes, End of M: yesG1: no, S: yes, G2: yes, Beginning of M: yes, End of M: yesBecause the replicated DNA is created, and the cell has twice as much genetic material, cells in the G2 phase have twice as much DNA.
What are the important phases of cell cycles?A diploid cell's G1 phase marks the start of the cell cycle (DNA content = 2 N; N is the number of chromosomes).
The cell enters the G2 phase with twice as much DNA (4 N) as the starting cell after DNA replication is finished in the S phase.
DNA replication happens in the S phase, when DNA synthesis happens and the amount of DNA doubles. Once the G1 phase is over, each chromosome contains one chromatid.
Each chromosome will have two chromatids following the S phase, though. The two chromatids here are exact duplicates of one another.
Therefore, When a cell is in the G1 phase, it physically expands and produces more protein and organelles.
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A population is a growth at a rate of 2 , 4, 8 ,16 ,32 which type of growth dose this describe?
Answer:
exponential
Explanation:
The age of 16 of growth does this question describe
(sodium potassum adenosine triphosphatase) is found in the plasma membrane and catalyzes the exchange of sodium and potassium ions across the membrane. Classify the statements about the transport system as either true or false.
Answer:
The statements are:
Pumps K+ out of the cell False
Pumps K+ions into the cell True
Exchanges 3 Na+ ions for 2 K ions+ True
Exchanges 3 K+ ions for 2 Na+ ions False
Creates a membrane potential that is negative on the inside True
The transport protein becomes adenylated by ATP during the transport cycle True
Pumps Na+ ions out of the cell True
Pumps Na+ ions into the cell False
Explanation:
Sodium Potassium Adenosine Triphosphatase is in the membrane of cells. Its function is to create a difference of charges between the inside and the outside of the cell. The enzyme pumps 3 Na+ ions outside the cell for every 2 K+ ions that pumps inside the cell producing a resting potential. As this process is against their concentration gradient, the protein needs the energy to do it. This energy comes from the ATP that attaches to the transport protein.
Which capillary would be least likely to allow substances to enter or exit the blood due to tight junctions that join the endothelial cells
Answer:
Those capillaries that have endothelial cells tightly attached have an increase in cell-to-cell junctions, such as desmosomal junctions that are poorly permeable to substances.
These capillaries generally function as conductors or collectors and not as permeabilizers like the pulmonary capillaries that are fenestrated and allow a high passage of substances and gases.
The capillaries are waterproof and prevent the passage of substances or fluids such as in the blood-brain barrier that is very selective
Explanation:
The blood-brain barrier is too selective since it is not favorable for the organism that many fluids, drugs, substances or chemical compounds enter the brain space.
This is the reason why the vessels are waterproof and why pharmacology was challenged to invent drugs that could cross this barrier since it was considered impossible.
An example is dopamine, which in parkynson's disease the levo group is added to dopamine, thus forming levodopamine as a product, this is the only way that the drug crosses the blood-brain barrier and can pass the impermeable barrier generated by capillaries with endothelial cells that are close to each other or closely linked
During its Golden Age, China followed a policy of _____, believing their country to be the center of the world. Choose the best response. independence openness multiculturalism isolation
Answer:
multiculturalism
Explanation:
Humans release carbon dioxide that plants need and plants provide oxygen that human needs what is that called
Answer: Photosynthesis? sorry they way this is worded is kinda confusing but my guess would be photosynthesis
Explanation:
The mechanism by which proteins synthesized in the cytosol are imported into the mitochondrial matrix is different from the mechanism by which proteins enter the nucleus, yet the two mechanisms do share some features. Indicate whether each of the following statements applies to nuclear import, mitochondrial import, both, or neither. Sort each statement into the appropriate bin.
1. The polypeptide to be transported into the organelle has a specific short stretch of amino acids that targets the polypeptide to the organelle.
2. The imported protein enters the organelle through some sort of protein pore
3. The pore complex consists of more than two dozen proteins and is large enough to be readily seen with the electron microscope.
4. ATP hydrolysis is known to be required for the translocation process
5. The signal sequence is always at the olypeptide's N-terminus and is cut off by a peptidase within the organelle
6. The signal sequence is recognized
GTP hydrolysis is known to be required for the translocation process
7. There is strong evidence for the involvement of chaperone proteins polypeptide's N-terminus and isctand bound by a receptor protein inrequired for the translocation during translocation of the protein the organelle's outer membrane process.
Nuclear import Mitochondrial import Both Neither
Answer:
Nuclear import:
1. GTP hydrolysis is known to be required for the translocation process
2. The pore complex consists of more than two dozen proteins and is large enough to be readily seen through electron microscopy
Mitochondrial import:
1. ATP hydrolysis is known to be required for the translocation process
2. The signal sequence is always at the polypeptide's N-terminus and is cut off by a peptidase inside the organelle
3. There is strong evidence for the involvement of chaperones during the translocation process
4. The signal sequence is recognized and bound by a receptor protein in the organelles outer membrane
Both:
1. The polypeptide to be transferred into the organelle has a specific short stretch of amino acids that targets the polypeptide to the organelle
2. The imported protein enters the organelle through some sort of protein pore
Explanation: