2. Questions Bank
  3. 12th Class
  4. Biology
  5. Principle Of Inheritance And Variation

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

  • question_answer
    XX male and XY female are very rare in humans. They are due to :

    A) Genes of Y-chromosome are on X chromosome

    B) Crossing over between X and Y

    C) Non-disjunction of chromosomes

    D) All of the above

    Correct Answer: A

    Solution :

    Genes of Y-chromosome are on X chromosome


You need to login to perform this action.
You will be redirected in 3 sec spinner