red flowers (R) are dominant to white flowers (r). The offspring of a cross between two red-flowered plants show the fallowing phenotype ratio:
3 red-flowered plants to 1 white-flowered plant
what are the genotypes of the parent plants?
2007-04-01 08:13:02 · 4 answers · asked by Josh C 2 in Science & Mathematics ➔ Biology
If the offspring are 3 red: 1 white, then each of the parents had to give an "r" to the offspring. However, each parent is red. That means the parents had to be Rr x Rr. If you do a Punnett square, you'll see that those parents would have offspring in the correct ratio.
2007-04-01 09:20:13 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋
maybe the recessive gene of red flowers was white(w),so when the two similar classes got together the recessive gene was predominant., I don't know.
2007-04-05 10:59:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
mag me on yahoo or email me the names katy I can helpu
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2007-04-01 20:49:02 · answer #3 · answered by Katy 2 · 0⤊ 0⤋
wo im sorry but i cant help you that is hard
2007-04-01 15:17:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋