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18 July, 11:03

If the frequency of an allele is 0.75, how many copies of this allele should be in a population of 300 diploid individuals?

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  1. 18 July, 11:20
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    I have provided the options below:

    a. 150

    b. 225

    c. 300

    d. 450

    e. 75

    Answer:

    150

    Explanation:

    Hardy-Weinberg law states, the allelic frequencies of a gene that is, q and p follow the relationship p^2+q^2+2pq = 1, if the population is in equilibrium.

    Therefore p^2+q^2+2pq = 1, can be used to calculate the percentage of the allelic frequencies i. e. p^2 and q^2

    Allelic frequency = 0.75.

    Therefore, the percentage of the allele in the population would be given by

    0.75^2 = 0.5625 = 56%.

    And the total number of individuals with this allele in the population:

    number of individuals = 56*300:100

    = 168 or

    150 nearest figure.
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