Q154 / 180 · NEET 2016 (Phase 2) · Zoology

Taylor conducted the experiments to prove the semiconservative mode of chromosome replication on:

  • A
    Vinca rosea
  • Correct answer
    B
    Vicia faba
  • C
    Drosophila melanogaster
  • D
    E. coli

Solution

Matthew Meselson and Franklin Stahl (1958) performed following experiment using heavy nitrogen (15N) in E. coli to prove semi-conservative model of DNA replication. Taylor et. al proved semi-conservative mode of chromosome replication in eukaryotes using tritiated thymidine (3H - thymidine) in root of Vicia faba (Faba beans).

Hence, the correct answer is option: 'B'.

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