WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    9:3:3:1 ratio is modified to 9 : 7 ratio due to

    A)  complementary gene

    B)  epistatic gene

    C)  hypostatic gene

    D)  supplementary gene

    Correct Answer: A

    Solution :

                    The complementary genes are two pairs of non allelic genes which interact to produce only one phenotypic trait, but neither of them if present alone produces the phenotypic trait in absence of other. The phenotypic ratio in \[{{F}_{2}}\] generation is 9 : 7, .e.g., flower color in Liilhyrns.


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