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Read the following statements about Lac operon:
i. Each operon has its specific operator and specific repressor.
ii. The Y-gene codes for permease, which increases the permeability of the cell to beta-galactosides.
iii. Regulation of lac operon can be visualised as regulation of enzyme synthesis by its substrate.
Select the correct option.
  • a)
    All statements are correct
  • b)
    All statements are incorrect
  • c)
    Only i is correct and ii & iii are incorrect
  • d)
    Only i & iii are correct.
Correct answer is option 'A'. Can you explain this answer?
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Read the following statements about Lac operon:i. Each operon has its...
The Lac operon is a gene system characterised in Escherichia coli for the regulation of the gene for utilization of lactose. Lac operon genes Z, Y, and A represent the genes whose products are involved in digesting lactose. In the normal condition, the genes do not function because a repressor protein is active and bound to the DNA preventing transcription. When the repressor protein is bound to the DNA, RNA polymerase cannot bind to the DNA. The protein must be removed before the genes can be transcribed. The repressor protein is produced by a regulator gene. The region of DNA where the repressor protein binds is the operator site. The promoter site is a region of DNA where RNA polymerase can bind. The entire unit (promoter, operator, and genes) is an operon.
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Read the following statements about Lac operon:i. Each operon has its...
Is incorrectd)Only i is correct and iii is incorrect
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Read the following statements about Lac operon:i. Each operon has its specific operator and specific repressor.ii. The Y-gene codes for permease, which increases the permeability of the cell to beta-galactosides.iii. Regulation of lac operon can be visualised as regulation of enzyme synthesis by its substrate.Select the correct option.a)All statements are correctb)All statements are incorrectc)Only i is correct and ii & iii are incorrectd)Only i & iii are correct.Correct answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Read the following statements about Lac operon:i. Each operon has its specific operator and specific repressor.ii. The Y-gene codes for permease, which increases the permeability of the cell to beta-galactosides.iii. Regulation of lac operon can be visualised as regulation of enzyme synthesis by its substrate.Select the correct option.a)All statements are correctb)All statements are incorrectc)Only i is correct and ii & iii are incorrectd)Only i & iii are correct.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following statements about Lac operon:i. Each operon has its specific operator and specific repressor.ii. The Y-gene codes for permease, which increases the permeability of the cell to beta-galactosides.iii. Regulation of lac operon can be visualised as regulation of enzyme synthesis by its substrate.Select the correct option.a)All statements are correctb)All statements are incorrectc)Only i is correct and ii & iii are incorrectd)Only i & iii are correct.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Read the following statements about Lac operon:i. Each operon has its specific operator and specific repressor.ii. The Y-gene codes for permease, which increases the permeability of the cell to beta-galactosides.iii. Regulation of lac operon can be visualised as regulation of enzyme synthesis by its substrate.Select the correct option.a)All statements are correctb)All statements are incorrectc)Only i is correct and ii & iii are incorrectd)Only i & iii are correct.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
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