Essay
In rats,the gene for the pigment (P)is dominant to no pigment (p).The gene for black (B)is dominant to the gene for cream (b).If a pigment gene (P)is absent,genes B and b are inoperative.Predict the genotypes and phenotypes of the F1 of a cross between a homozygous black rat and an albino homozygous for cream.
Correct Answer:

Verified
Correct Answer:
Verified
Q8: Assume that in guinea pigs, dark brown
Q65: The purposeful control over mating by choice
Q67: The blood groups A,B,and O are different
Q68: In some plants,a purple pigment is synthesized
Q69: An individual can be a heterozygote for
Q71: Lines that produce offspring carrying specific parental
Q72: In Drosophila,forked (fk)bristles are recessive to normal
Q73: People may inherit a specific genotype that
Q74: A cross in which the traits carried
Q75: Suppose that in plants,smooth seeds (S)are dominant