# Knowing that there are 29 different alleles of D1S80, how many different classes

**Question description**

Knowing that there are 29 different alleles of D1S80, how many different classes of

homozygotes
exist? How many **different classes **of heterozygotes exist? It was stated

earlier that 435 different D1S80 genotypes are possible. How was this number obtained?

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