If the Recombination Frequency Between Two Genes Is Close to 50

Multiple Choice

If the recombination frequency between two genes is close to 50%, what could be true about the location of the two genes? (Select all that apply. )

A) They are on nonhomologous chromosomes.
B) They are far apart on the same chromosome.
C) They are very close together on the same chromosome.
D) None of the choices could be true.