Red cow is bred with a white bull. Both are homozygous for coat colour.?

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Red cow is bred with a white bull. Both are homozygous for coat colour.?

The f1 generation were all roan(between red and white) in colour.

What would be the ratios of the phenotypes and genotypes of the F2 generation be when the roan cattle are interbred?

2007-03-15 09:10:46 · 3 answers · asked by paul g 1 in Science & Mathematics ➔ Biology

3 answers

1 red: 2 roan: 1 white

2007-03-16 15:40:27 · answer #1 · answered by wesnaw1 5 · 0⤊ 0⤋

Red = RR
White = WW
Roan = RW

Parents RR x WW
F1 all RW

to get the F2, cross RW x RW
in the resulting Punnett square, you will have RR RW WR WW. Those are the expected genotypes.

The expected phenotype ratio is 1 red: 2 roan: 1 white.

2007-03-15 16:16:30 · answer #2 · answered by ecolink 7 · 1⤊ 0⤋

look you get red bull ok. ha ha

2007-03-15 16:18:02 · answer #3 · answered by Anonymous · 0⤊ 1⤋