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scZoUnD [109]
3 years ago
11

In negative control of transcription by the lac operon, how does the presence of an inducer affect transcription?

Biology
1 answer:
likoan [24]3 years ago
6 0

Answer:

The correct answer is a) the inducer prevents the repressor from binding to the operator

Explanation:

In lac operon lac I gene synthesize repressor protein that binds to the operator region of the lac operon and inhibits the transcription of the mRNA  by partially blocking the promotor region of lac operon where RNA polymerase binds.

When the inducer is present it binds to the repressor protein and makes a conformation change in the protein as a result repressor protein is not able to bind the operator region of the operon and do not able to block the transcription of the lac operon.

Therefore in the presence of inducer transcription of operon occurs so the right answer is a) the inducer prevents the repressor from binding to the operator.

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Answer:

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100 points and Brainliest!!! Plus, an opportunity for an extra 100 points if correct.
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Which of the following host defenses is considered the most effective in combating S. aureus infection?
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<h3>What is phagocytic response?</h3>

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<h3>What is S. aureus infection?</h3>

It has long been known that S. aureus is one of the most significant germs that harm humans. It is the main contributor to skin and soft tissue infections such cellulitis, furuncles, and abscesses (boils). Boils are the most typical staph infection form. This is a pus-filled pocket that forms in an oil gland or hair follicle. Typically, the skin around the infected area turns red and swells. To treat staph infections, doctors frequently administer cefazolin, nafcillin, oxacillin, vancomycin, daptomycin, and linezolid. Vancomycin may be necessary for staph infections that are severe. This is due to the fact that a large number of staph bacterium strains have developed resistance to other common antibiotics.

Thus from above conclusion we can say that phagocytic response is considered the most effective host defenses in combating S. aureus infection.

Learn more about the phagocytic response here:

brainly.com/question/28232491

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