Two genes are 22 map units apart on the same chromosome. A true-breeding GGhh individual is crossed to a true-breeding ggHH individual. The F1 offspring are mated to gghh individuals. If this testcross produces 1000 offspring, how many of them would you expect to be GgHh? 

Assuming that 50% of the offspring are male and 50% are female, what is the probability of this couple having a daughter with long index fingers?

Which of the following is not a molecular explanation for dominance?

Which of the following statements regarding epigenetics is true?

In mice, a true-breeding female with a normal spine is crossed to a true-breeding male with a crooked spine. All of the F1 offspring have normal spines. The F1 female offspring are then crossed to true-breeding males with a crooked spine. All of the F2 offspring have normal spines. These are observations are consistent with

What is the probability that this couple will have four children, three sons with short index fingers and one daughter long index fingers?

The product rule is used to solve problems in which

Assuming that 50% of the offspring are male and 50% are female, what is the probability of this couple having a daughter with short index fingers?

The molecular explanation for imprinting (as in the Igf2 gene) is that

With regard to a maternal effect gene, a mother is dd and her haploid oocyte (d) is fertilized by a sperm carrying the D allele.  Which gene products would be found in this fertilized oocyte?