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GGHH and Ccdd Individuals Are Crossed to Each Other and the F1

Question 39

Multiple Choice

GGHH and ccdd individuals are crossed to each other and the F1 backcrossed to the gghh parent. The 4000 progeny included 1806 GgHh, 1794 gghh, 196 Gghh, and 204 ggHh individuals. GGhh and ggHH individuals are next crossed to each other and the F1 test-crossed to a gghh individual. A total of 1600 offspring appeared in the progeny. How many do you expect to be of GgHh genotype?


A) 40
B) 160
C) 320
D) 80
E) 1600

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