in guinea pigs, the allele for a rough coat (R) is dominant over the allele for smooth coat (r). Two guina pigs that are heterozygous for a rough coat, mate and produce offspring. What is the probability that the offspring will have a smooth coat?

Question

in guinea pigs, the allele for a rough coat (R) is dominant over the allele for smooth coat (r).  Two guina pigs that are heterozygous for a rough coat, mate and produce offspring.  What is the probability that the offspring will have a smooth coat?

bobpursley · Answer

Rr x Rr offsprin: RR, Rr, rR, rr smooth coat rr,1 in 4