Molecular Basis of Inheritance Question 134
134. One gene -one enzyme hypothesis was postulated by
(a) Hershey and Chase
(b) A. Garrod
(c) Beadle and Tatum
(d) R. Franklin
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Answer : c
Hints & Solution
(c) Beadle & Tatum postulated the theory of ‘One gene-one enzyme’ in which they stated that in any living cell there are number of genes present on chromosomes in a linear fashion. One single gene controls the synthesis of one particular enzyme (or protein) in the cell which is responsible for its phenotypic character.