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9 July, 07:18

At the end of your biology class, your professor asks you to develop a project to determine the genotype of a plant with red flowers. Red petal color (R) is dominant to pink flower color (r). To accomplish this task, you cross the plant with the unknown genotype with heterozygous red-flowered plants.

1. Which of the following are valid predictions of the ratio of flower colors in the offspring?

O all pink flowers

O all red flowers

O 1 red : 3 pink flowers

O 3 red : 1 pink flowers

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Answers (1)
  1. 9 July, 09:56
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    Answer: the answer is 3red: 1pink flowers.

    Explanation: A petal colour R is dominant to pink flower r = Rr. while crossing it with a heterozygous red flowered plant = Rr.

    Ie: R r

    R RR Rr

    r Rr rr

    The ratio of the flower colour is 3 red flowers and 1 pink
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