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Regulatory proteins are the accessory pr...

Regulatory proteins are the accessory proteins that interact with RNA polymerase and affect its role in transcription. Which of the following statements is correct about regulatory protein ?

A

They only increase expression

B

They only decrease expression

C

They interact with RNA polymerase , but do not affect

D

They can act both as activators and as reprssors

Text Solution

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The correct Answer is:
D
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ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (A) Taking it together (Assorted questions of the Chapter for Advanced Level Practice
  1. The control of gene expression is more complex in eukaryotic cells bec...

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  2. What are proteosomes

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  3. Regulatory proteins are the accessory proteins that interact with RNA ...

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  4. The first undoubted evidence about DNA being the genetic material came...

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  5. Dr. Khorana and his colleagues synthesized an RNA molecule with repeat...

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  6. The promoter site and the terminator site for transcription are locate...

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  7. The wild type E. coli cells are growing in normal medium with glucose....

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  8. In an E coli cell according to the operon theory, an operator gene com...

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  9. The lac operon requires a ' helper' protein which, by binding to the p...

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  10. Which one of the following pairs is correctly matched?

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  11. During protein synthesis , the correct amino acid is brought to the ri...

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  12. Addition of lactose in a culture of E. coli induces enzymes ----------...

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  13. Practice using the dictionary of the genetic code determine the amino ...

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  14. During protein synthesis , the correct amino acid is brought to the ri...

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  15. Which among the following codon do not codes for valine (val)?

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  16. The process of translation requires

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  17. Which of the following is true about the terminator

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  18. Which of the following is true about the promoter gene?

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  19. In protein synthesis, a polypeptide of five amino acids is synthesized...

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  20. In mRNA , AUG is the initiating codons and UAA, UAG and UGA are termin...

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