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Home › CBSE Class 12 (Science) › Biology › Molecular Basis of Inheritance › Meselson and Stahl grew E. coli on which heavy i…

Meselson and Stahl grew E. coli on which heavy isotope?

ANitrogen-14
BNitrogen-15
CSulfur-35
DPhosphorus-32
Answer & Solution
Correct answer: B. Nitrogen-15
They used 15NH4Cl as the only nitrogen source so that new DNA became heavy, a non-radioactive label.
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