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densk [106]
3 years ago
6

How do traits that are

Biology
1 answer:
pochemuha3 years ago
8 0

Answer:

C

Explanation:

Positive natural selection, or the tendency of beneficial traits to increase in prevalence (frequency) in a population, is the driving force behind adaptive evolution. ... At the molecular level, selection occurs when a particular DNA variant becomes more common because of its effect on the organisms that carry it.

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Answer:

All the possible alleles for a gene with multiple alleles cannot be expressed by single individual

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Gene pool refers to the sum total of all the alleles of all the genes which are present in a population. Human beings are diploid organisms. One individual can have only two possible alleles for a gene. A gene can have two or more than two alleles. Since all the possible alleles for a gene with multiple alleles cannot be expressed by single individual, a gene pool cannot be made of one individual.

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