Question

which factor most likely results in the loss of genetic variation from small populations?
mutation
genetic recombination
genetic drift
migration

Explanation:

• Mutation: Introduces new genetic variation, so it does not cause loss.
• Genetic recombination: Shuffles existing genetic material, creating new combinations but not causing loss in small populations.
• Genetic drift: Random changes in allele frequencies. In small populations, these random changes can lead to the loss of alleles (genetic variation) more easily.
• Migration: Can introduce or remove genetic variation. But when considering loss from small populations, genetic drift is more likely.

Answer:

genetic drift