Ans.
Lac (lactose) operon in a type of bacterial operon, which shows a cluster of genes that are regulated by a single promoter. It is composed of an operator, promoter, a terminator, and three structural genes (lacA, lacY, and lacZ), which are responsible for the transport and breakdown of lactose.
The lac operon is an inducible operon as it gets activated in the presence of lactose and expressed its functional genes in the form of proteins (or enzymes) for lactose metabolism.
Thus, the correct answer to be fill in first blank is 'inducible' and in second blank is 'lactose.'
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A lipid molecule primarily is used as a storage mechanism for the cell as ATP doesn't last very long before degenerating.
Imagine that a person has a disorder of the pancreas that does not allow it to secrete digestive enzymes. The breakdown of the macromolecule would be <span>affected the most by this disorder. The macromolecule is called the "Nucleic Acids."</span>
