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Vera_Pavlovna [14]
3 years ago
10

How could genetic drift explain differences in the genotype frequencies among the caucasian and aborigine populations?

Biology
1 answer:
Novay_Z [31]3 years ago
7 0

Genetic drift occurs when there is no random mating across a population. This causes a change in allelic frequency due to a random sampling of the population.

As the aboriginal population explored the earth,  a small part of the population became geographically isolated either due to continental drift and climate changes. As the isolated population grew bigger, they established their own gene pool. This resulted a change in genotypic frequencies from that of the aboriginal population.







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Answer:

There are several answers to this question: The appearance of a novel phenotype resulting from a substitution of a single base pair might be due to:___. These possibilities are:

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2. Change in the amount of protein that is transcribed. Again proteins are the ones that carry out the instructions from genetic material. A change in DNA will show in how not just amino acids will be arranged, but also the structure, and amount of protein transcribed, and also the types. This will alter the phenotypical expression.

3. Change in the developmental time and/or location at which a gene is expressed. Time and also the placement of the base pairs in the genetic sequence can alter how these are expressed when they are translated into RNA.

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3 years ago
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7 0
3 years ago
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kotykmax [81]
I only have one reason but hope it helps!

Because without those bases pairing there <span>would be no structure of a DNA.</span>
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