In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. What are the possible combinations of genes in the offspring of two red eyed heterozygous flies (Rr)?
2007-03-12 14:17:00 · 5 answers · asked by fishcantswim 5 in Science & Mathematics ➔ Biology
25% rr , 25% RR , and 50% Rr good luck hope this helped!
2007-03-12 14:21:42 · answer #1 · answered by ~~ny giants fan~~ 2 · 0⤊ 0⤋
Okay so the fruit flies are both heterozygous...
R r
R RR Rr
r Rr rr
RR
Rr
rr
I hope that helps..
2007-03-12 22:40:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
RR, Rr, Rr, rr (3 different combinations, 4 total) I am absolutely positive.
2007-03-12 21:25:05 · answer #3 · answered by ? 3 · 0⤊ 0⤋
R r
R RR Rr
r Rr rr
so possible combinations... RR, Rr, rr.
2007-03-12 21:20:08 · answer #4 · answered by LoveisfirE 3 · 0⤊ 1⤋
the answer is:
RR Rr rr
2007-03-12 21:31:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋