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NEET Biology Principle Of Inheritance And Variation Question Bank Self Evaluation Test - Principles of Inheritance and Variation

  • question_answer
    In the \[{{F}_{2}}\]generation of a dihybrid cross between yellow, round seeded and green, wrinkled seeded pea plants, 17 out of 254 pea seeds were green and wrinkled. Other seeds were: Yellow and round; green and round; yellow and wrinkled. These results indicate which of the following statement?

    A) Crossing over has occurred.

    B) Green and wrinkled are both recessive characters.

    C) The alleles for green and wrinkled are linked.

    D) The allele for green is recessive but not the allele for wrinkled.

    Correct Answer: B

    Solution :

    [b] The proportion of seeds that turn out to be  green and/or wrinkled was very little, indicating that these two are both recessive characters, which are phenotypically expressed only if they are present in homozygous condition.


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