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Oliga [24]
3 years ago
14

Do individual organisms evolve? If not, what does? How does it happen?

Biology
2 answers:
Svet_ta [14]3 years ago
4 0

Answer:

individuals do not evolve, as each individual's genes do not change, and evolution is defined as the change in allele frequencies over time.

Explanation:

denis23 [38]3 years ago
4 0
Individual organisms don't evolve. Populations evolve. Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions.
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Suppose a mutation affects an enzyme that is required to repair the damage to DNA caused by the loss of purine bases. This mutat
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Answer: There's no way one species can become another through depuranization, which is a random change.

Explanation:

In cells, environmental (chemical or physical) and metabolic factors can cause DNA damage, which is the molecule that stores genetic material. In these cases, the damage done to the DNA is repaired.

<u>Many of these lesions cause a permanent structural damage to the DNA, which can alter the ability to be transcribed, or can cause mutated genes to be transcribed resulting in another protein.</u> Particularly, depurination is the hydrolytically cleavage of the β-N-glycosidic bond between the purines (adenosine or guanosine) and the carbon of the sugar group found in the DNA. This mutation results in the loss of the purine base and leads to the formation of apurinic site and results and severely disrupts the DNA structure. The most important causes of depurination is the presence of endogenous metabolites inside the cell as a result of various chemical reactions and due to the presence of mutagenic compounds. However, these apurinic sites <u>are usually repaired by portions of the base excision repair (BER) pathway</u>.

There's no way one species can become another through depuranization, which is a random change. Because it is highly unlikely that 5000 mutations are able to accumulate every day without being repaired, and that they are just the right mutations to have the same characteristics as a chimpanzee. <u>If the depurinations are not repaired, the cell will most likely either die or become cancerous.</u>

5 0
3 years ago
Which of the following would be the latest in the development of a human fetus?
lesya692 [45]
I believe it would be "bones start to replace cartilage to form the beginnings of a skeleton" since that happens in months 7 and 8
6 0
4 years ago
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What factors can affect how enzymes work?
mixer [17]

Explanation:

Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.

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c.An offspring can receive different alleles or the same alleles from each parent.

e.Traits are inherited when genes are passed from parents to offspring.

Explanation:

3 0
3 years ago
Animal cells contain all of the following structures EXCEPT a
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B) Cell wall.

Hope this helps!

-Payshence xoxo
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