In the northern regions of its range, a species of bird experiences selection for increased size.Farther south, it experiences selection for decreased size.Given some migration across its range, the most likely result is
A) diversifying selection.
B) heterozygote advantage.
C) homozygote advantage.
D) clinal variation.
E) Muller's ratchet.

Question

Quizplus · Accepted Answer

Clinal variation refers to the gradual change in a trait or allele frequency across a geographic range. In this case, the bird species experiences selection for different sizes in different regions, leading to clinal variation in size across the range. Migration can help maintain this variation by bringing individuals with different alleles or traits into contact, allowing for continued selection in different areas. Therefore, the most likely result of this scenario is clinal variation.

In the Northern Regions of Its Range, a Species of Bird