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Gene regulation governing lactose operon of E.coli that involves the lac I gene product is :             [2015 RS]
  • a)
    Negative and inducible because repressor protein prevents transcription
  • b)
    Negative and repressible because repressor protein prevents transcription
  • c)
    Feedback inhibition because excess of bgalactosidase can switch off trascription
  • d)
    Positive and inducible because it can be induced by lactose
Correct answer is option 'A'. Can you explain this answer?
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Gene regulation governing lactose operon of E.coli that involves the l...
Its A
Allolactose is an example of an inducer, a small molecule that triggers expression of a gene or operon. The lac operon is considered an inducible operon because it is usually turned off (repressed), but can be turned on in the presence of the inducer allolactose.
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Gene regulation governing lactose operon of E.coli that involves the l...
In negative inducible operons, a regulatory repressor protein is normally bound to the operator, which prevents the transcription of the genes in the operon. If an inducer molecule is present, it binds to the repressor and changes its conformation so that it is unable to bind to the operator. This allows for expression of the operon. The lac operon is a negatively controlled inducible operon, where the inducer molecule is allolactose
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Gene regulation governing lactose operon of E.coli that involves the lac I gene product is : [2015 RS]a)Negative and inducible because repressor protein prevents transcriptionb)Negative and repressible because repressor protein prevents transcriptionc)Feedback inhibition because excess of bgalactosidase can switch off trascriptiond)Positive and inducible because it can be induced by lactoseCorrect answer is option 'A'. Can you explain this answer?
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Gene regulation governing lactose operon of E.coli that involves the lac I gene product is : [2015 RS]a)Negative and inducible because repressor protein prevents transcriptionb)Negative and repressible because repressor protein prevents transcriptionc)Feedback inhibition because excess of bgalactosidase can switch off trascriptiond)Positive and inducible because it can be induced by lactoseCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Gene regulation governing lactose operon of E.coli that involves the lac I gene product is : [2015 RS]a)Negative and inducible because repressor protein prevents transcriptionb)Negative and repressible because repressor protein prevents transcriptionc)Feedback inhibition because excess of bgalactosidase can switch off trascriptiond)Positive and inducible because it can be induced by lactoseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Gene regulation governing lactose operon of E.coli that involves the lac I gene product is : [2015 RS]a)Negative and inducible because repressor protein prevents transcriptionb)Negative and repressible because repressor protein prevents transcriptionc)Feedback inhibition because excess of bgalactosidase can switch off trascriptiond)Positive and inducible because it can be induced by lactoseCorrect answer is option 'A'. Can you explain this answer?.
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