Question

Gal¡pagos medium ground finches are found on Santa Cruz and San Cristbal islands, which are separated by about 100 km of ocean. Occasionally, individuals from either island fly to the other island to stay. This can alter the allele frequencies of the population through which of the following mechanisms?

a) Gene flow
b) Genetic drift
c) Natural selection
d) Mutation

Answer 1

Gene flow can alter the allele frequencies of the Galápagos medium ground finch population.

Step-by-step explanation:

The mechanism that can alter the allele frequencies of the Galápagos medium ground finch population is gene flow. Gene flow occurs when individuals from one population migrate to another and interbreed with individuals from that population, thereby introducing new alleles into the gene pool.