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

  • question_answer
    Direction Read the following and answer the questions from given below
    Genes are segments of Deoxyribonucleic Acid (DNA) that contains the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are passed down the generations in a particular manner and we receive roughly half of our genetic material from each parent. Chromosomes describe and determine gender and any change in them causes chromosomal abnormalities.
    (v) Assertion [A] Behaviour of chromosomes is parallel to gene.
    Reason [R] Genes are located on the chromosomes.

    A) Both A and R are true and R is the correct explanation of A

    B) Both A and R are true, but R is not the correct explanation of A

    C) A is true, but R is false

    D) A is false, but R is true

    Correct Answer: B

    Solution :

    [b] Both A and R are true and R is the not the correct explanation of A. Behaviour of chromosomes is considered to be parallel to that of genes. This is because as genes are passed on from one generation to the next, chromosomes also get passed on from one generation to the next.


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