NEET Botany Molecular Basis of Inheritance Questions Solved

Which scientists first gave experimental evidence that DNA is the genetic material?

(1) Avery, MacLeod , and McCarty who repeated the transformation experiments of Griffith, and chemically characterized the transforming principle.

(2) Garrod, who postulated that Alcaptonuria, or black urine disease, was due to a defective enzyme.

(3) Beadle and Tatum, who used a mutational and biochemical analysis of the bread mold Neurospora to extablish a direct link between genes and enzymes. 

(4) Meselson and Stahl who showed that DNA is replicated semiconservatively.

(1) Read page 101, XII NCERT

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