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29 August, 05:22

In tomatoes, tall (D) is dominant over dwarf (d) and smooth fruit (P) is dominant over pubescent fruit (p), which is covered with fine hairs. A farmer has two tall and smooth tomato plants, which we will call plant A and plant B. The farmer crosses plants A and B with the same dwarf and pubescent plant and obtains the following numbers of progeny: A. What are the genotypes of plant A and plant B? B. Are the loci that determine the height of the plant and pubescence linked? If so, what is the percent recombination between them? C. Explain why different proportions of progeny are produced when plant A and plant B are crossed with the same dwarf pubescent plant?

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  1. 29 August, 05:44
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    a) Both DdPp

    b) Yes 3.8%

    c) In plant A, the dominant allele D and P are coupled (DP, dp), In plant B they are in repulsion (Dp, dP).
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Home » Biology » In tomatoes, tall (D) is dominant over dwarf (d) and smooth fruit (P) is dominant over pubescent fruit (p), which is covered with fine hairs. A farmer has two tall and smooth tomato plants, which we will call plant A and plant B.
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