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In E. coli, the lac operon gets switched...

In E. coli, the lac operon gets switched on when

A

repressor binds to operator

B

RNA polymerase binds to the operator

C

lactose is present and it binds to the repressor

D

lactose is present and it binds to RNA polymerase

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The correct Answer is:
C
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GRB PUBLICATION-GENE EXPRESSION AND REGULATION-NCERT Corner(Exemplar Problems)
  1. The amino acid attaches to the tRNA at its

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  2. To initiate translation, the mRNA first binds to

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  3. In E. coli, the lac operon gets switched on when

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  4. A diagrammatic representation of the central dogma in molecular biolog...

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  5. Diagrammatic view of a dinucleotide is given below. Identify A,B and D...

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  6. Read the following five statements (A to E) about nucleic acids and se...

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  7. Diagram of a nucleosome is given below. Identify A, B and C by selecti...

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  8. Which one of the following statements is wrong ?

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  9. Schematic structure of a transcription uit is given below. Select the ...

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  10. A diagrammatic view the Hershey-Chase experiment is given below. Ident...

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  11. Watson-Crick model for DNA replication is given below. Identify the mo...

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  12. Consider the following statements : A. RNA has evolved from DNA with...

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  13. The following diagram shows the lac Operon in the absence of inducer: ...

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  14. Identify the molecule shown below :

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  15. Consider the following statements with respect to translation. A. Tr...

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  16. Which one of the following statements is incorrect?

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  17. Initiation step during the process of transcription in bacteria is sho...

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  18. Process of transcription in eukaryotes is given below. Identify A,B,C ...

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  19. Which of the following statement/s regarding nucleic acids is/are wron...

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  20. Select the correct option :

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