A scientist is researching oil content of seeds from a new plant species named R. artificial. The average oil content from plants in her lab

Question

A scientist is researching oil content of seeds from a new plant species named R. artificial. The average oil content from plants in her lab population is 52%, and she has determined the narrow sense heritability (h^2) is 0.60. If she randomly mates individuals with 70%, 71%, 72%, 73%, and 74% seed oil content what is the expected response to selection (R)?

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Thiên Di 7 months 2021-07-23T14:11:37+00:00 1 Answers 0 views 0

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    2021-07-23T14:12:39+00:00

    Answer:

    The correct answer is – 12%

    Explanation:

    Given:

    Mean of the population – 0.52

    Narrow sense heritability or h^2 – 0.6

    The expected response of selection or R = ?

    Solution:

    The average oil content in the selected individuals – 0.7, 0.71, 0.72, 0.73, 0.74

    And, the mean of these selected individuals = (0.7 + 0.71 + 0.72 + 0.73 + 0.74) / 5

    = 0.72

    Formula:

    S = Average of selected individuals – Average of population

    = 0.72 – 0.52

    = 0.20

    R = h^2 x S

    R = 0.6 x 0.2

    = 0.12

    = 12%

    Thus, the correct answer is – 12%

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