WB JEE Medical WB JEE Medical Solved Paper-2009

  • question_answer
    During replication of DNA, Okazaki fragments are formed in the direction of

    A)  3\[\to \] 5                          

    B)  5 \[\to \] 3

    C)  5\[\to \] 5                          

    D)  3\[\to \] 3

    Correct Answer: B

    Solution :

                    Okazaki et al, (1968) suggested that during DNA replication only one strand shows a continuous replication (leading strand), while other strand (lagging strand) replicates in a discontinuous manner, .i.e., synthesizes short fragments called Okazaki fragments. Both the strands synthesize new strand in 5 \[\to \] 3 direction (of new strand).


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