Two genes are linked and are 48 cM apart Given the following

Two genes are linked and are 48 cM apart. Given the following information, predict the phenotypic ratios of the F2 offspring. Be sure to identify the recombinant and non-recombinant offspring. Parental Generation: AABB X aabb F1 Generation: AaBb X test cross

Solution

Parental Genotype: AABB X aabb

F1 generation: AaBb

Test cross: AaBb X aabb

aaBb and Aabb are the recombinants.

	ab	Frequency
AB	AaBb	0.25
Ab	Aabb	0.25
aB	aaBb	0.25
ab	aabb	0.25