Barbara McClintock is well known for her work on..

Options :
  1. Cell division, recombination and chiasmata
  2. Mobile genetic elements
  3. Polytene chromosomes
  4. X-inactivation and Barr body
Answer and Explanation :-

Answer: Option 2

Explanation:

Barbara McClintock received the Nobel Prize for Physiology or Medicine in 1983, credited by the Nobel Foundation for discovering "mobile genetic elements" over thirty years after she initially described the phenomenon of controlling elements.

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