In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed heterozygous fly (Rr) mates with a sepia-eyed homozygous fly (rr), what are the possible genotypes of their offspring?
Rr only
RR, Rr, and rr
Rr and rr
RR and Rr

Can anyone please tell me if the correct answer is Rr and rr? Thanks

Question

In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed heterozygous fly (Rr) mates with a sepia-eyed homozygous fly (rr), what are the possible genotypes of their offspring?  
Rr only
RR, Rr, and rr
Rr and rr
RR and Rr

Can anyone please tell me if the correct answer is Rr and rr?  Thanks

agreene · Answer

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Looks like i get the same as you, Rr and rr

anonymous · Answer

Ok thank you so very much, I was hoping I was right this punnett square stuff is new to me.  Thanks again.

agreene · Answer

no problem, keep up the good work :)