Class 12 · Molecular Basis of Inheritance

Triplet Codon Evidence & Khorana Method — NEET Biology

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Providing proof that the codon was a triplet, was a more daunting task. The chemical method developed by Har Gobind Khorana was

NCERT Biology · Class 12 · Chapter 5 · Paragraph 90
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Match the scientists with their contributions: Column I A. James Watson B. Francis Crick C. Marshall Nirenberg D. Har Gobind Khorana E. Kornbergs (father and son) Column II (i) Synthesised RNA sequences in the lab (ii) DNA replication studies (iii) Deciphered the genetic code (iv) Double helix model with Crick (1953) (v) Ph.D. in “X-ray Diffraction: Polypeptides and Proteins” (1954)

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Correct answer: B A–(iv), B–(v), C–(iii), D–(i), E–(ii)

Watson with Crick → DNA double helix (1953). Crick → Ph.D. in X-ray diffraction, 1954. Nirenberg → deciphered the genetic code. Khorana → synthesised RNA sequences. Kornbergs → DNA replication studies.

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Providing proof that the codon was a triplet, was a more daunting task. The chemical method developed by Har Gobind Khorana was
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Molecular Basis of Inheritance, Class 12 NCERT Biology.

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