This question matches biological theories and concepts with the scientists associated with them. I. Theory of Mutation: Proposed by Hugo de Vries (D), based on his work with evening primroses. II. Theory of Evolution (by natural selection): Most famously articulated by Charles Darwin (C). III. One gene one enzyme hypothesis: Proposed by George Beadle and Edward Tatum (A), based on their experiments with Neurospora crassa, stating that each gene codes for a specific enzyme. IV. Operon concept: Proposed by François Jacob and Jacques Monod (B) in 1961, explaining the regulation of gene expression in bacteria, particularly the lac operon. Matching these gives: I-D, II-C, III-A, IV-B.
Match List I with List II and select the correct answer using the codes given below the lists: List I List II A) Beadk and I. Theory of Mutation Tatum B) Jacob and II. Theory of Evolution Monod III. One gene one enzyme hy‐ C) Darwin pothesis IV. Operon concept D) De Vries Codes:
Asked in UPPCS Prelims 1998 · Topic: Evolution of Life (Modern Synthetic Theory of Evolution (Neo-Darwinism): Genetic basis of variation, role of population genetics.)
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