In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed homozygous fly

Question

3 years ago

5

In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed homozygous fly

(RR) and a red-eyed heterozygous fly (Rr) mate together, what are the possible genotypes of their offspring? (Hint: You many want to complete a Punnett square.)
RR and rr
Rr only
Rr and RR < I think its this one
RR, Rr, and rr

Biology

2 answers:

horsena [70] · Answer 1 · 2022-07-29T03:38:36+03:00

Answer:

Yes the answer you expected is correct. Its RR and Rr.

Explanation:

As per the given information the parent generation is as follows:

Parent: Red eyed homozygous fly (RR) x red eyed heterozygous fly (Rr)

Gametes: R and R , r

F1 generation : RR and Rr

The F1 generation will have only these two possible genotypes.

Download docx

tatyana61 [14] · Answer 2 · 2022-07-29T01:41:53+03:00

tatyana61 [14]3 years ago

4 0

You are correct, it would be RR and Rr