3 years ago

Below is a segment of a strand of normal DNA:

1 answer:

3 0

This would be an example of:
C) an insertion mutation.

Notice how the sequence contains the same letters as before, only an A is added to the beginning. Adding extra nucleotides is an example of an insertion mutation, a type of frame-shift also, because the reading frame will be thrown off downstream.

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Which mechanism(s) are responsible for introducing new alleles into a population's gene pool?

Elena-2011 [213]

Answer: The right answer is -

A) Gene flow

Explanation:

Gene flow is a process of gene migration or the transfer of gene variant (also called allele, which is responsible for genetic variation in population) from one population to another population.

As a consequence of gene migration, new alleles are introduced or added in the already existing population, thereby increasing genetic diversity.

Thus, option A) is the right answer.

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3 years ago

What is physiography ?

viva [34]

Answer:

physiography originally means the study of nature . but here it means physical geography

Explanation:

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