Genes with Similar Sequences in Two Different Species of Organisms,such

Genes with similar sequences in two different species of organisms,such as humans and mice

A) produce essentially identical products that have essentially identical functions.
B) may produce products that have slightly to dramatically different functions.
C) almost always have completely different functions in the two species.
D) there is no way of predicting whether the gene will function the same way or differently.
E) are nearly always nonfunctional or "nonsense" DNA in one of the species,present only as a transposon.