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KVPY Sample Paper KVPY Stream-SX Model Paper-11

  • question_answer
    Which of the following crosses and resultant phenotypic ratios are mismatches.

    A)
    CROSS PHENOTYPIC RATIO
    \[TtYy\times TtYy\] 9 : 3 : 3 : 1

    B)
    CROSS PHENOTYPIC RATIO
    \[TtYy\times ttyy\] 1 : 1 : 1 : 1

    C)
    CROSS PHENOTYPIC RATIO
    \[tt\times Tt\] 2 : 1

    D)
    CROSS PHENOTYPIC RATIO
    \[Tt\times Tt\] 3 : 1

    Correct Answer: C

    Solution :

    \[\begin{matrix}    \underset{tt\,\,\times \,\,Tt}{\mathop{\mathbf{CROSS}}}\, & \underset{2\,\,:\,\,1}{\mathop{\mathbf{PHENOTYPIC}\,\,\mathbf{RATIO}}}\,  \\ \end{matrix}\]


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