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

Question

a mutation alters the sequence of a gene resulting in a new allele
• a mutation in a chromosome makes it more likely to undergo genetic recombination
• an individual works out, increasing their muscle mass
• a population of birds suddenly decrease their frequency of sexual reproduction

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 contributes to genetic variation by creating new combinations of alleles. A decrease in sexual reproduction would limit the mixing of genetic material, leading to a reduction in genetic variation within that population.