Question

Help !!In guinea pigs, an allele for rough fur (R) is dominant over an allele for smooth fur (r), and an allele for black coat (B) is dominant over an allele for white fur (b). What would be the genotype of
a guinea pig with smooth black fur?
RR, BB
Rr, Bb
rr,bb
rr,BB

Answer 1

Answer:

I believe I have had this question this before. The correct answer should be rr, BB.

Answer 2

Answer:

rr,BB or rr,Bb

Explanation:

IF I remember right only one B is needed to turn a coat black, so I would assume the same of R since R is dominant over r and B is dominant over b.

So the answer has to be rr,BB or rr,Bb.