Question
Zoology Question on Evolution Of Life Forms – A Theory
Consider a large population of a finch species, where both small and big beak sizes are advantageous, and an intermediate beak size is maladaptive. Over a period of 10 years, which one of the following evolutionary processes is most likely to operate on the beak size of this finch population?
A
directional selection
B
disruptive selection
C
genetic drift
D
stabilizing selection
Answer
disruptive selection
Explanation
Solution
The correct option is (B) :disruptive selection.