What was the first organism in which semiconservative DNA replication was proven?

What was the first organism in which semiconservative DNA replication was proven?
  1. Escherichia coli
  2. Plants
  3. Human cells
  4. None of the above

Solution

Semiconservative DNA replication was first proven in Escherichia coli, and was subsequently shown in higher organisms such as plants and human cells. Meselson and Stahl's experiment showed that DNA replicates semiconservatively in E. coli.

Asked in: NCERT

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