In snapdragons, heterozygotes have pink flowers, whereas the dominant and recessive homozygotes have red and white flowers, respectively. When red-flowered plants are crossed with white-flowered plants, what percentage of the progeny will have pink flowers?

Question

Cade English

Biology

27 January, 14:50

In snapdragons, heterozygotes have pink flowers, whereas the dominant and recessive homozygotes have red and white flowers, respectively. When red-flowered plants are crossed with white-flowered plants, what percentage of the progeny will have pink flowers?

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Answers (1)

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Cara Ferguson · Answer 1

100%

Explanation:

We are given a red flower plant. This means its homozygous dominant (RR). We are given a white flower plant. This means it is homozygous recessive (rr). Each plant will give its allele. The red one will always give R and the white one will always give r. Heterozygous (Rr) plants have pink flowers. So they will all be pink.