A Dominant Gene B⁺ Is Responsible for the Wild-Type Body

Multiple Choice

A dominant gene b⁺ is responsible for the wild-type body color of Drosophila;its recessive allele b produces black body color.A testcross of a heterozygous b⁺/b female by a black b/b male gave 52 black and 58 wild-type progeny.If a black female from these progeny were crossed with a wild-type brother,what phenotypic ratios would be expected in their offspring?

A) All males will be wild type,and all females will be black.
B) All progeny will be black.
C) All progeny will be wild type.
D) 75% will be wild type,25% will be black.
E) 50% will be wild type,50% will be black.