Large ears is a rare trait in a mainland population of mice.A few female mice homozygous for very large ears arrive at an island that already contains mice after sneaking onto a boat.This will lead to a population with a higher incidence of big ears than the mainland population because of ________
A)a bottleneck effect.
B)gene flow.
C)increased mutation.
D)genetic drift.
E)natural selection.

Question

Quizplus · Accepted Answer

Gene flow occurs when individuals or their gametes move from one population to another, introducing new alleles into the population. In this scenario, the arrival of mice with large ears introduces the alleles for large ears into the island population, potentially increasing the frequency of this trait compared to the mainland population.

Large Ears Is a Rare Trait in a Mainland Population