I think it’s B because it looks fimilaor
Answer:
The correct answer will be option-A.
Explanation:
Lac operon is a set of genes arranged sequentially for lactose metabolism in E.coli. The lac operon gets activated in the presence of lactose as the lac operon consists of three enzyme coding genes called lacZ which codes for the β-galactosidase enzyme, lacY which codes for lactose permease, lacA which codes for acetyltransferase along with a regulatory gene called lacI which codes for repressor proteins.
The repressor proteins bind to the operator and control the transcription. When it binds to operator its huts off the transcription. If a mutation occurs in the laci gene then the protein will lose the machinery which will turn off the activity of enzymes and will lead to the constitutive expression of the genes irrespective of the inducer present or not.
Thus, option-A is the correct answer.
The correct answer is:
Explanation:
Through the actions of decomposers, phosphorus and sulfur are reacted to the soil. Decomposers are organisms that break down stagnant or decaying organisms, and in doing so, they bring out the natural process of dissolution. Their energy is earned by the use of organic substrates.
The kid is jumped and beat up from some bullies at school, he may be afraid that they will beat him again worse if he tells on them. <span>Fear of retribution.</span>
