An isolated population of humans with approximately equal numbers of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed people remained to form the next generation. This kind of change in the gene pool is called a

Options

A. Hardy-Weinberg equilibrium
B. Blocked gene flow
C. Bottleneck effect
D. Founder effect

Answer

C

Explanation

According to Bottle neck effect given by stebbins the natural calamities such as earthquake, volcanic eruption causes decreases in gene pool and the small surviving population is not a representative of parent population.