contestada

What effect would overfishing most likely have on a population of fish in a lake?
A-cause a gene flow to occur in the population.
B-create a bottleneck effect, reducing genetic diversity.
C-create a founder effect, restricting genetic variation.
D-increase the chances of mating between non related partners.
E-favor the process of stabilizing selection in the population.

Respuesta :

B is the answer.  A bottleneck effect occurs when a large, genetically diverse  population suddenly  experiences some  catastrophic  even and declines to a very low population.
gradman555p98x9p

The right answer is B- create a bottleneck effect, reducing genetic diversity.

A population bottleneck (also known as a genetic bottleneck) is, in the study of biological evolution, an event corresponding to the fact that a substantial proportion of the population of a species disappears or is prevented from to reproduce.

Population bottlenecks (or bottlenecks) thus reduce genetic diversity, and hence the ability of people to adapt to new environmental constraints such as climate change, or a decline in available resources.