Question

In a certain rat-like animal, tail length is determined by one set of genes. The Long-tailed allele (L) is dominant to the short-tailed allele (I) A long-tailed male rat-like animal is mate to a short-tailed female. They have 3 litters of 8 pups each. All 24 of their offspring have long tails A. What are the genotypes of each of the parents? B. What are the genotypes of their offspring? When two of their offspring are mated, what possible phenotypes can result? In what ratio? C. when two of their offspring are mated, what possible phenotypes can result? In what ratio?

Answer 1

A. Genotypes of parents are LL and ll

B. 100% Ll and all long tails

C. 50% Ll 50% ll half short tails half long tails

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