12th Class Biology Sample Paper Practice Paper - 3

  • question_answer
    Directions: Each of these questions contains two statements :
    Assertion and Reason. Each of these questions also has four alternative choices, any one of which is the correct answer. You have to select one of the codes [a], [b], [c] and [d] given below.
    Assertion [A] For replication of DNA a small RNA chain is required as a primer.
    Reason [R] DNA polymerase cannot initiate synthesis of a new DNA strand.

    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: A

    Solution :

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


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