Hormone insulin was discovered by
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Banting and Best
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Beadle and Tatum
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Watson and Crick
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Sanger
A
Correct answer
Explanation
Frederick Banting and John Macleod (with Charles Best and James Collip) discovered insulin in 1921-22, earning the 1923 Nobel Prize. Watson and Crick discovered DNA structure, Sanger developed protein sequencing, and Beadle and Tatum worked on gene-enzyme relationships.