In a population of organisms with 4 alleles, how many homozygous genotypes are possible? How many heterozygous genotypes are possible?
A)3; 4
B)4; 3
C)4; 4
D)4; 6
E)4; 10

Question

Quizplus · Accepted Answer

For homozygous genotypes, each allele can pair with itself, resulting in 4 possible homozygous combinations (AA, BB, CC, DD). For heterozygous genotypes, each allele can pair with each of the other three alleles, but since AB is the same as BA (order doesn't matter), there are 6 unique combinations (AB, AC, AD, BC, BD, CD).

In a Population of Organisms with 4 Alleles, How Many