Question

Use your knowledge of Mendelian genetics to write a hypothesis that answers the lab question, “What is the effect of the genes of the parental mice on the fur color of the offspring mice?” Be sure to use the “If . . . then . . . ” format.
If fur color in these mice is determined by simple Mendelian alleles with black (B) dominant to brown (b), then the fur color of the offspring will reflect the parents’ genotypes (for example: BB × BB → 100% black; BB × bb → 100% black (all Bb); Bb × bb → ~50% black, 50% brown; and Bb × Bb → ~75% black, ~25% brown).
Several different possible hypotheses appear below. Click the hypothesis that most resembles the hypothesis you wrote.

If either parent mouse passes a dominant allele, the offspring will have black fur.

If you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

If you know the genes of the parental mice, then you can predict the traits of the offspring mice.

Something else (in “If . . . then . . . ” format)

Answer 1

If fur color is controlled by a single gene with black (B) dominant to brown (b), then the offspring’s fur color will follow Mendelian ratios predictable from the parents’ genotypes (e.g., BB×BB → 100% black; BB×bb → 100% black (all Bb); Bb×bb → ~50% black, ~50% brown; Bb×Bb → ~75% black, ~25% brown; bb×bb → 100% brown).

The hypothesis that most resembles this is: "If you know the genes of the parental mice, then you can predict the traits of the offspring mice."