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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? (Hint: You many want to complete a Punnett square.)
Rr only
RR, Rr, and rr
Rr and rr
RR and Rr

Respuesta :

dasetka
Complete a Punnett Square to see the possible offspring.

.              R    I   r
              -------------
           r  I Rr I  rr   I
              --------------
           r  I Rr I  rr   I
              --------------
Excuse the horrible square, but as you can see, the possible genotypes will be Rr and rr.

austinfountain6

Answer:

Rr and rr

Explanation:

i took the class

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