Question

The mean beak depth of a particular finch species is 15 millimeters. assuming the trait is heritable what would happen to the mean beak depth after several generations of stabilizing selection?
a. the mean should be less than 15mm
b. the mean should be more than 15mm
c. the mean will change randomly
d. the mean should not change

Answer 1

Answer: the mean should not change.

Stabilizing selection: it is one type of the natural selection..

an intermediate variant selected by the nature has more survival rate against extreme and low variants. such variants are well adopted by the population and pass it for several generations without changes. it shows that the mean of the variant will be stabilized for several generations