THE MOLECULAR BASIS OF INHERITANCE
DNA REPLICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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made of two old strands of dna
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made of two new strands of dna
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made of one hold strand and one new strand of dna
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Detailed explanation-1: -In this model, the two strands of DNA unwind from each other, and each acts as a template for synthesis of a new, complementary strand. This results in two DNA molecules with one original strand and one new strand.
Detailed explanation-2: -This process is known as semi-conservative replication because two copies of the original DNA molecule are produced, each copy conserving (replicating) the information from one half of the original DNA molecule. Each copy contains one original strand and one newly-synthesized strand.
Detailed explanation-3: -DNA replication is semi-conservative because each helix that is created contains one strand from the helix from which it was copied. The replication of one helix results in two daughter helices each of which contains one of the original parental helical strands.
Detailed explanation-4: -This process is said to be ‘semiconservative’ because one strand from each parent is conserved and remains intact after replication has taken place.
Detailed explanation-5: -Each DNA molecule contains one strand of the original DNA molecule and one newly synthesized (made) strand. Therefore, DNA replication is called semiconservative. Was this answer helpful?