Egg and Fluffy are two linked bird genes that are 16 map units apart.The E allele of Egg produces large eggs, and the e allele produces small eggs (E is dominant).The F allele produces fluffy feathers, and the f allele produces nonfluffy feathers (F is dominant).If EEFF is crossed with eeff, what proportion of the offspring should be birds that produce large eggs and fluffy feathers?
A) 8 percent
B) 16 percent
C) 42 percent
D) 84 percent
E) 100 percent

Question

Quizplus · Accepted Answer

The EEFF x eeff cross produces EeFf offspring, which are heterozygous for both traits. Since the genes are 16 map units apart, 16% of the offspring will be recombinant, and 84% will be parental types. The parental types (large eggs and fluffy feathers) will be 84% of the offspring.

Egg and Fluffy Are Two Linked Bird Genes That Are