In foxes, two alleles of a single gene, P and p, may result in lethality (PP), platinum coat (Pp), or silver coat (pp). Part A What ratio is obtained when platinum foxes are interbred?

Ratio 1:2:1. That is, 25% lethality (PP), 50% platinum coat, 25% silver coat

Explanation:

When two heterozygous foxes are interbred, in every single birth, there is a

25% chance of having a fox homozygous for lethality (PP)

50% chance of having a heterozygous fox with platinum coat (Pp)

25% chance of having a homozygous fox with a silver coat (pp)

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

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