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Which of the following events would occu...

Which of the following events would occur in 'Lac' operon' of E. coli when the growth medium has high concentration of lactose ?

A

The structural genes fail to produce polymerase and mRNA

B

The repressor protein binds to RNA polymerase and prevents translation

C

The repressor protein attaches to the promoter sequence and derepresses the operator

D

The inducer molecule binds to repressor protein and RNA polymerase binds to promoter sequence

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The correct Answer is:
D
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ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (C) Medical entrance s gallery
  1. Assume that the occurrence of nitrogen bases in adjacent positions in ...

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  2. The result of the following reaction/experiment carried out by Avery e...

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  3. Which of the following events would occur in 'Lac' operon' of E. coli ...

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  4. Statement A : The primary transcript produced in eukaryotic is transla...

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  5. The diagram shows an important concept in the genetic implicatio of D...

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  6. Which enzyme/s will be produced in a cell in which there is a nonsense...

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  7. What would happen if in a gene encoding a polypeptide of 50 amino acid...

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  8. The number of codons that code different amino acids is

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  9. Some amino acids are coded by more than one codon

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  10. What is correct gene expression pathway ?

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  11. What is not true for genetic code ?

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  12. Okazaki is known for his contribution to the understanding of

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  13. During replication of DNA, Okazaki fragments are formed in the directi...

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  14. which of the following amino acid codon was used by khorana?

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  15. Which one of the following statements regarding lac operon is correct?

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  16. Select the true statement

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  17. If one strand of DNA has the nitrogenous base sequence as ATCTG, what ...

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  18. Antibiotic inhibiting interaction between tRNA and mRNA during protein...

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  19. Out of 64 codons, the number of codons with GGGis

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  20. Removal of RNA polymerase III from nucleoplasm will affect the synthes...

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