In pea plants, tall plants are dominant over short, and green pods are dominant over yellow. If you were to cross true-breeding tall, green-podded plants with true-breeding short, yellow-podded plants, and then were to cross the F1 individuals among thems

A. 3/4
B. 3/16
C. 9/16
D. 1/4
E. 1/16

1

Answers


  1. 0 Votes

    I’m not too sure which information you are asking of in terms of the ratios, but here are the tables that show the work (if that is what you’re needing)

    When crossing the parent plants – Dominant tall (TT), Dominant green (GG) x Recessive short (tt), Recessive yellow (gg) – it produces the F1 generation:

     

    TG

    TG

    tg

    TtGg

    TtGg

    tg

    TtGg

    TtGg

    So as you can see, 100% of the F1 generation can be noted as TtGg – still tall and green since the dominant genes are present in all of them.  So you asked if the F1 generation were to be crossed with eath other:

     

    TG

    Tg

    tG

    tg

    TG

    TTGG

    TTGg

    TtGG

    TtGg

    Tg

    TTGg

    TTgg

    TtGg

    ttGg

    tG

    TtGG

    TtGg

    ttGG

    ttGg

    tg

    TtGg

    Ttgg

    ttGg

    ttgg

    From this table, you can find the ratio that you are looking for – be it the ratio of plants who are tall, short, green, yellow.

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