Consider a gene with n alleles A₁, A₂, ..., A_n. How many distinct genotypes are possible, taking into account both homozygous and heterozygous genotypes? A)n² B)n²/2 C)n(n -1) D)n(n - 1)/2 E)n(n + 1)/2

Question

Quizplus · Accepted Answer

The number of distinct genotypes for a gene with n alleles, considering both homozygous and heterozygous combinations, can be calculated using the formula n(n + 1)/2. This accounts for n homozygous genotypes (one for each allele) and n(n - 1)/2 heterozygous genotypes (since each pair of different alleles can form a unique heterozygous genotype, and each pair is counted only once).

Consider a Gene with N Alleles A1, A2

Consider a Gene with N Alleles A₁, A₂