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21 May, 08:34

A heterozygous y'all yellow plant is crossed with a homozygous short green. What will be the genotypes and phenotypes, and probabilities of the first generation?

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  1. 21 May, 08:43
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    genotypes Tt Yy, Ttyy

    phenotypes tall and yellow, tall and green

    probanility 1/2, 1/2

    Explanation:

    symbols T = tall, t = short, Y = yellow, y = short

    parental phenotype tall heterozygous yellow x short homozygous green

    parental genotype TTYy ttyy

    meiosis

    gametes TY Ty ty

    random fertilisation

    offspring genotype TtYy and Ttyy

    offspring phenotype tall and yellow tall and green

    probability 1/2 1/2
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