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  3. 12th Class
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  5. Principle Of Inheritance And Variation

12th Class Biology Principle Of Inheritance And Variation Question Bank MCQs - Principles of Inheritance and Variation

  • question_answer
    In Down's syndrome, karyotyping has shown that the disorder is associated with trisomy of chromosome number-21 usually due to non-disjunction during formation of egg cells.

    A) True

    B) False

    C) Cannot say

    D) Partially true or false

    Correct Answer: D

    Solution :

    [d] In Down's syndrome, karyotyping has shown that the disorder is associated with trisomy of chromosomes number 21 usually due to the non-disjunction during formation of egg cells and sperm cells.


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