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NEET Biology Principle Of Inheritance And Variation Question Bank Sex Determination

  • question_answer
    In the buccal cavity slide cell of an individual we get a dark stained body near nuclear membrane. The genotype of the individual may be [DPMT 1983]

    A) XX

    B) XY

    C) XYY

    D) XXX

    Correct Answer: A

    Solution :

    Accroding to genetic balance theory, the ratio of x-chromosomes and autosomes is operative in determining sex in Drosophila. For male ratio is .50 and for female 1.00. The ratio increases in superfemales and decreases in supermales.


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