Question

Question

Which of the following scenarios will decrease the genetic variation of a population?(1 point)
Responses

an individual works out, increasing their muscle mass
an individual works out, increasing their muscle mass

a mutation in a chromosome makes it more likely to undergo genetic recombination
a mutation in a chromosome makes it more likely to undergo genetic recombination

a population of birds suddenly decrease their frequency of sexual reproduction
a population of birds suddenly decrease their frequency of sexual reproduction

a mutation alters the sequence of a gene resulting in a new allele

Answer 1

The scenario that will decrease the genetic variation of a population is:

a population of birds suddenly decrease their frequency of sexual reproduction.

Sexual reproduction increases genetic variation through the mixing of genes from two parents. If a population decreases its frequency of sexual reproduction, there will be less mixing of genetic material, leading to a reduction in genetic variation over time.