In pigs, the allele for a wavy, rough coat (R) is dominant to the allele for a soft, fine coat (r). A rough coat boar and a soft coat sow mate. They produce several litters, 50% are rough coat and 50% are smooth coat. What were the genotypes of the parents?

Question

Harley Tran

Biology

28 November, 18:33

In pigs, the allele for a wavy, rough coat (R) is dominant to the allele for a soft, fine coat (r). A rough coat boar and a soft coat sow mate. They produce several litters, 50% are rough coat and 50% are smooth coat. What were the genotypes of the parents?

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Answers (1)

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Trevin Austin · Answer 1

1. Do a pun-net square.

R r

r

r

2. The offspring would be Rr, rr, Rr, rr

3. 2 of them are heterozygous (Rr), which means they would be most likely rough coats

4. Two of them are homozygous for short hair (rr) which means they are going to be soft hair.

5. Your answer is

Rr, rr