Passage II
Each dog in a particular population has a black brown, or yellow coat. In this population, coat color is determined by 2 unlinked genes: Gene B and Gene E. Gene B has 2 alleles: B and b. Gene E also has 2 alleles: E and e. Table 1 shows the possible genotypes for Gene B and Gene E and the resulting coat color phenotypes.
Two of the dogs with black coats were crossed 3 times (Crosses 1-3). The coat colors of the offspring produced in each cross are shown in Table 2.
13. Approximately what percent of the normal gametes produced by a dog with the genotype BbEE will contain the B allele?
Your Answer is
Correct Answer is C
Explanation
There are only two possibilities for the gamete (germ cells) produced by a dog with genotype BbEE, namely BE or bE, so the probability of B allele is 50%