The genes F and G act in accordance with the Dobzhansky-Muller model, leading to sterility in hybrids between two species of monkeyflowers.Any combination of the F1 and the G2 alleles causes hybrids to be sterile.Based on the Dobzhansky-Muller model, which genotype should have low fitness?
A) F1F1; G1G1
B) F1F1; G2G2
C) F0F0; G2G2
D) F2F2; G0G0
E) F2F2; G2G2

Question

Quizplus · Accepted Answer

According to the Dobzhansky-Muller model, the combination of the F1 and G2 alleles leads to hybrid sterility. Therefore, the genotype with both F1F1 and G2G2 should have low fitness, as it represents a combination of alleles that leads to sterility.

The Genes F and G Act in Accordance with the Dobzhansky-Muller