Suppose on the hypothetical planet Trantor, a plantlike creature called a zork exhibits the characteristics of blending inheritance. Red zorks that are crossed with other red zorksproduce only red offspring. White zorks that are crossed with other white zorks produce only white offspring. White zorks that are crossed with red zorks yield pink offspring. If pink offspring were backcrossed to their white parents, which of the following would be the most likely result? a. All red individualsb. All white individualsc. 3/4 white individuals, 1/4 red individualsd. 1/2 white individuals, 1/2 red individualse. All individuals with a color that is intermediate between white and pink

Question

Biology

Ryder Parrish

23 May, 09:40

Suppose on the hypothetical planet Trantor, a plantlike creature called a zork exhibits the characteristics of blending inheritance. Red zorks that are crossed with other red zorksproduce only red offspring. White zorks that are crossed with other white zorks produce only white offspring. White zorks that are crossed with red zorks yield pink offspring. If pink offspring were backcrossed to their white parents, which of the following would be the most likely result? a. All red individualsb. All white individualsc. 3/4 white individuals, 1/4 red individualsd. 1/2 white individuals, 1/2 red individualse. All individuals with a color that is intermediate between white and pink

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Answers (1)

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Dominick Mckinney · Answer 1

1/2 pink and 1/2 white individuals.

Explanation:

yield

Both the red zorks and the white zorks are said to be true-breeding, that is, they are homozygous for their individual color traits.

Assuming red color is represented by R and white is represented by r.

Red zorks = RR

White zorks = rr

RR x rr = Rr (pink)

If pink zorks (Rr) are backrossed to white parent (rr)

Rr x rr = 2Rr, 2rr

2Rr - pink

2rr - white

It will result in 50% pink and 50% white individuals.