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26 March, 06:23

A variety of pure-breeding snapdragons produces a tall plant with green seeds (WWSS). A second variety of pure-breeding snapdragons produce a short plant with white seeds (wwss). The two varieties are crossed, and the resulting seeds are collected. All of the seeds are green and when planted, they produce all tall plants (WwSs). These tall F1 plants are allowed to self-fertilize. The results for seeds and plant height in the F2 generations are as follows. What is the Х 2

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  1. 26 March, 09:26
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    Offspring resulting from F2 generation are -

    WWSS-1

    WWSs - 2

    WwSS-2

    WwSs - 4

    WWss-1

    Wwss-2

    wwSS-1

    wwSs-2

    wwss-1

    Explanation:

    The offspring produced in the first generation after carrying a cross between WWSS and wwss are WwSs

    F2 generation -

    In this generation two parents having genotype WwSs are crossed. A punnet square showing a cross between them is shown below-

    WS Ws wS ws

    WS WWSS WWSs WwSS WwSs

    Ws WWSs WWss WwSs Wwss

    wS WwSS WwSs wwSS wwSs

    ws WwSs Wwss wwSs wwss

    The following genotype result from the cross

    WWSS-1

    WWSs - 2

    WwSS-2

    WwSs - 4

    WWss-1

    Wwss-2

    wwSS-1

    wwSs-2

    wwss-1
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