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The lac operon is turned on when allolac...

The lac operon is turned on when allolactose molecules bind to

A

Operator gene

B

mRNA

C

Repressor protein

D

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The correct Answer is:
C
Lac operon is turned on when lactose or allolactose binds to repressor protein.
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A2Z-MOLECULAR BASIS OF INHERITANCE-Section A: Topicwise Questions (topic 7: Regulation Of Gene Expression) The Lac Operon
  1. Match the components of lac-operon of Escherichia coli ad find out the...

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  2. Recognise the figure and find out the correct matching.

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  3. The lac operon is turned on when allolactose molecules bind to

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  4. An environmental agent that triggers transcription from an operon is a...

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  5. The genes are responsible for growth and differentiation in an organis...

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  6. In operon model, regulator gene functions as

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  7. Operon contains

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  8. In Escherichia coli, the product of i gene combines with

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  9. Operon is

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  10. Escherichia coli with mutated z gene of lac operon cannot grow in medi...

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  11. Match the column and choose the correct option.

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  12. Lac operon concept was proposed by

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  13. Escherichia coli growing on medium having glucose is transferred to la...

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  14. In Lac-operon, repressor protein binds to

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  15. A gene of operon which forms the repressor protein is

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  16. Operon model of gene regulation and organisation of prokaryotes was pr...

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  17. Sequence of structural genes of lac operon is

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  18. What is correct gene expression pathway ?

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  19. Lac operon 'inducer lactose' serves as an anzyme substrate for anzyme

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  20. In lac operon model, lactose functions as

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