Zoology - Evolution Question with Solution | TestHub
Natural selection can lead to __________.
(a) stabilisation
(b) genetic drift
(c) directional change
(d) disruption
Choose thecorrectanswer from the options given below :NEET 2026 (Re-NEET)
Options:
Answer:
Solution:
Natural selection is a process in which individuals with favorable inherited traits are more likely to survive and reproduce. Based on the traits favored, natural selection can lead to three main types of changes in a population.
Stabilisation occurs when more individuals acquire the mean character value, reducing variation.
Directional change occurs when more individuals acquire a value other than the mean character value, shifting the peak in one direction.
Disruption occurs when more individuals acquire peripheral character values at both ends of the distribution curve, leading to two peaks.
Genetic drift is a random change in allele frequencies, which is a separate evolutionary force and not a result of natural selection.
Therefore, natural selection can lead to stabilisation, directional change, and disruption.
Answer: (a), (c) and (d) only
