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NEETZoologyMolecular Basis of Inheritance

Select the incorrect statement for the given figure.

Options

  1. AMatthew Meselson and Franklin Stahl performed the following experiment in 1958.
  2. BThey grew E. coli in a medium containing 15 NH 4 Cl ( 15 N is the heavy isotope of nitrogen) as one of the nit
  3. CThis heavy DNA molecule could be distinguished from the normal DNA by centrifugation in a cesium chloride (CsC
  4. D15 N is not a radioactive isotope, and it can be separated from 14 N only based on densities.

Correct answer

B. They grew E. coli in a medium containing 15 NH 4 Cl ( 15 N is the heavy isotope of nitrogen) as one of the nit

Step-by-step solution

Matthew Meselson and Franklin Stahl performed the following experiment in 1958: (i) They grew E. coli in a medium containing 15 NH 4 Cl ( 15 N is the heavy isotope of nitrogen) as the only nitrogen source for many generations. The result was that 15 N was incorporated into newly synthesised DNA (as well as other nitrogen containing compounds).This heavy DNA molecule could be distinguished from the normalDNA by centrifugation in a cesium chloride (CsCl) density gradient (Please note that 15 N is not a radioactive is

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