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NEET Biology Molecular basis of Inheritance / विरासत का आणविक आधार Question Bank Nucleic acid (DNA/RNA)

  • question_answer
    During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and [CBSE PMT 2004]

    A) Moves in one direction of the site

    B) Moves in bi-directional way

    C) RNA primers are involved

    D) Is facilitated by tolemerase

    Correct Answer: B

    Solution :

    The two template strands of a replicating DNA molecule are antiparallel\[(5\to 3\grave{\ }\,\,and\,\,3'\to 5')\]at the unwinding replication fork (y-shaped). In bacteria and many DNA phages this extending is bi-directional.


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