SCIENCE
BOTANY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Operon model of gene regulation and organization of prokaryotes was proposed by ____
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Messelson and Stahl
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Wilkins and Franklin
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Beadle and Tatum
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Jacob and Monod
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Explanation:
Detailed explanation-1: -The operon model for regulating bacterial genes was first proposed by François Jacob and Jaques Monod using the negatively regulated lactose genes of E. coli as an example.
Detailed explanation-2: -Francois Jacob (a geneticist) and Jacques Monod (a biochemist) proposed a model of gene regulation, known as operon model in bacteria.
Detailed explanation-3: -So, the correct answer is ‘Jacob and Monod’.
Detailed explanation-4: -The lac operon is a cluster of genes through which Escherichia coli catabolizes lactose. It was first proposed by F. Jacob and J. Monod, who were also awarded the Nobel Prize in Physiology or Medicine in 1965 for their contributions.
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