OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Watson & Crick
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Avery, Mccleod, Mccarthy
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Matthew Meselson and Frank Stahl
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Harshey & Chase
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Detailed explanation-1: -The Meselson–Stahl experiment is an experiment by Matthew Meselson and Franklin Stahl in 1958 which supported Watson and Crick’s hypothesis that DNA replication was semiconservative.
Detailed explanation-2: -The presence of one parental subunit for each daughter DNA double helix supported semi-conservative replication. The third conclusion made by Meselson and Stahl stated that for every parental DNA molecule, two new molecules were made. Therefore, the amount of DNA after each replication increased by a factor of two.
Detailed explanation-3: -It was found that the daughter cells produced bands of DNA which was located at intermediate position between N14 and N15 which lead to the conclusion that the resultant daughter DNA contained two strands, one of N14 and the other is of N15, which act as an evidence for the semi-conservative nature of DNA replication.