Question

question 50
1 point
a scientist studying population genetics of a bird population inhabiting a group of islands finds that allelic diversity is highest on island c, lowest on island a, and island b has intermediate allelic diversity levels. what is the likely order in which these islands were colonized by this species?
a c then a then b
b b then a then c
c a then b then c
d c then b then a
e a then c then b
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Explanation:

In population genetics, allelic diversity tends to increase over time as a population colonizes a new area and evolves (e.g., through mutations, gene flow from subsequent colonizations). So the island with the highest allelic diversity (Island C) is likely colonized first, then the one with intermediate (Island B), and last the one with lowest (Island A). This matches option D: C then B then A.

Answer:

D. C then B then A