A) Francois Jacob
B) Jacques Monod
C) Both [a] and [b]
D) None of the above
Correct Answer: C
Solution :
In 1961, F Jacob and J Monod proposed the operon model to explain the genetic basis of enzyme induction and repression in prokaryotes. The original operon model applied specifically to regulation of genes for lactose metabolism in Escherichia coli but now it has been established that other operons also function. The switching on or off of gene action induce formation of the enzyme \[\text{ }\!\!\beta\!\!\text{ -}\]galactosidase.
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