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28 June, 02:12

The R locus determines flower color in a new plant species. Plants that are genotype RR have red flowers, and plants that are rr have white flowers. However, Rr plants have pink flowers. What type of inheritance does this demonstrate for flower color in these plants?

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  1. 28 June, 02:25
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    The correct answer will be - Non-Mendelian inheritance (incomplete dominance)

    Explanation:

    Incomplete dominance is a type of inheritance pattern observed in nature in which none of the two alleles completely show their effect and produces a third type of phenotype which is different from the phenotype of both the parents.

    In the given question, since the cross of red flower and white flower produces a third type of flower color known as pink during F₁ generation is the result of the incomplete effect of both the alleles.

    Cross

    RR (red) x rr (white) = Rr (pink)

    Thus, incomplete dominance is the correct answer.
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