1.

Identify the correct pair of combinations. I. `.^(14)C-` Distinction between PSI and PS II II. `.^(14)N-` Semiconservative replication of DNA III. `.^(35)S-` Polypeptide synthesis IV. `.^(32)P-` Identification of chemical nature of geneic materialA. II and IIIB. II and IVC. I and IID. I and III

Answer» Correct Answer - A
`.^(15)N` isotope was used by meselson and Strahl to experimentally determine the semiconservation method of DNA replication `S^(35)` isotopes takes part in protein synthesis that why also called as protoplasmic element


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