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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Streptococcus pneumoniae
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Escherichia coli
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Neurospora crassa
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Rattus rattus.
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Detailed explanation-1: -The semiconservative nature of replication of DNA was proved by Mathew Meselson and Franklin Stahl in 1985. They performed their experiment in the bacterium Escherichia coli. So, the correct answer is option D.
Detailed explanation-2: -The Meselson-Stahl experiment was an experiment which demonstrated that DNA replication was semiconservative.
Detailed explanation-3: -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-4: -In Escherichia coli DNA replication is semi-conservative and bidirectional. In 1958, Matthew meselson and Stahl experimented on Escherichia coli. This experiment proved that in newly synthesized DNA one strand is parental and one is the new one.