Question

You have experimentally trace back the genes F and R in rabbits to the same chromosome. F determines the firmness of the ear while R determines its shape. A firm pointy ear (FFRR) true breeding rabbit is crossed to a floppy and round ear rabbit (ffrr). A friend mates an F1 individual with a floppy and round ear rabbit. They observe that 10% of the progeny has floppy pointy ears. In a separate cross, If you were to cross two F1 individuals together, what frequency of the F2 would you expect to have firm and round ears?

Answer 1