Question

Francois Jacob and Jacques Monod studied Escherichia coli (E. coli) bacteria by using lab experimentation. What revision to their initial hypothesis did they come up with? The lac operon is repressed by allolactose. E. coli are unable to process lactose sugar. All E. coli operons are always turned on. Two operons regulate gene control in E. coli.

Answer 1

Answer:

D:  2 operons regulate gene control in E coli

Explanation:

Answer 2

Francois Jacob and Jacques Monod reviewed their initial hypothesis that the lac operon is repressed by allolactose.

Francois Jacob and Jacques Monod

Monod and Jacob became famous for their work with the E. coli lac operon, which encodes the proteins necessary for the transport and breakdown of the sugar lactose (lac). From their own work and the work of others, they created a model of how the levels of some proteins in a cell are controlled.

Monod also suggested the existence of messenger RNA molecules that link the information encoded in DNA and proteins.

With this information, we can conclude that Francois Jacob and Jacques Monod reviewed their initial hypothesis that the lac operon is repressed by allolactose.

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