Recombination Frequencies near 50 Percent Suggest That

Multiple Choice

Recombination frequencies near 50 percent suggest that

A) two genes are on different chromosomes.
B) two genes lie very close together on the same chromosome.
C) two genes are on the same chromosome but lie very far apart.
D) two genes are on different chromosomes,or two genes are on the same chromosome but lie very far apart.
E) none of the choices are correct.