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NEET Biology Principle Of Inheritance And Variation Question Bank Critical Thinking

  • question_answer
    A black dog heterozygous for the colour is crossed with white bitch, recessive homozygous. Progeny will show black to white offsprings in the ratio of [DPMT 1983]

    A) All black

    B) All albino

    C) 1 : 1

    D) 3 : 1

    Correct Answer: C

    Solution :

    It is a test cross ratio whenever a dominant heterozygous (Xx) is crossed with recessive homozygous (xx), the ratio in their progeny is 1 : 1.


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