12th Class Biology Sample Paper Biology - Sample Paper-1

  • question_answer
    What is meant by semi-conservative mode of DNA replication?

    Answer:

    A unique property of DNA is that it governs its own synthesis. The copying process of DNA to produce additional DNA molecules is called replication.
    The two strands of DNA would separate and each strand acts as a template for the synthesis of new complementary strand alongside it. After the completion of replication each DNA daughter molecule would have one parental and one newly synthesized strand and the two daughter DNA molecules are identical to the parent molecule. In each daughter DNA molecule only one parent strand is conserved. This mode of replication is said to be semiconservative.
                                                                                                        


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