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NEET 2018
Exam
NEET
Year
2018
Subject
Zoology
Chapter
Molecular Basis of Inheritance

NEET 2018 · Zoology · Molecular Basis of Inheritance

The experimental proof for semiconservative replication of DNA was...

The experimental proof for semiconservative replication of DNA was first shown in aThe experimental proof for semiconservative replication of DNA was first shown in a

Options

  1. APlant
  2. BBacterium
  3. CFungus
  4. DVirus

Correct answer

B. Bacterium

Step-by-step solution

The experimental proof for semiconservative replication of DNA was first shown in a bacterium - Escherichia coli. It was discovered by Meselson and Stahl in 1958.
In this mode of replication, one strand of parent DNA is conserved in the progeny while the second is freshly synthesized. Meselson and Stahl proved the evidence for the theory by using an isotope of Nitrogen (N15).

The experimental proof for semiconservative replication of DNA was first shown in a

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