GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is meant that DNA replication follows a “semi-conservative” model?
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After DNA replication, each strand contains one side that is a parental strand and the other side is a daughter strand.
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After DNA replication, one completed strand contains only parental DNA while the other contains only daughter DNA.
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None of these identify the “semi-conservative” model.
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After DNA replication, one completed strand contains a mixture of both parental DNA and daughter DNA dispersed throughout the strand.
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Explanation:
Detailed explanation-1: -The semi-conservative method of replication suggests that the two parental DNA strands serve as a template for new DNA and after replication, each double-stranded DNA contains one strand from the parental DNA and one new (daughter) strand.
Detailed explanation-2: -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.
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