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Question

One-gene-one enzyme hypothesis was proposed by

A
Beadle and Tatum
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B
Jacob and Monod
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C
Lederberg
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D
Watson and Crick
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Solution

The correct option is A Beadle and Tatum
The one gene-one enzyme hypothesis is the idea that genes act through the production of enzymes, with each gene responsible for producing a single enzyme that in turn affects a single step in a metabolic pathway. The concept was proposed by George Beadle and Edward Tatum in an influential 1941 paper. Beadle and Tatum noted that it was "entirely tenable to suppose that these genes which are themselves a part of the system, control or regulate specific reactions in the system either by acting directly as enzymes or by determining the specificities of enzymes".

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