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Genes that are involved in turning off o...

Genes that are involved in turning off or on the transcription of a set of structural genes are called

A

polymorphic genes

B

operator genes, regulator, repressor

C

reductant genes

D

regulatory genes

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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 smallest RNA is :-

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  2. The net electric charge on DNA and histones is

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  3. Genes that are involved in turning off or on the transcription of a se...

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  4. Control of gene experssion takes place at the level of

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  5. Which of the following steps in transcription is catalysed by RNA poly...

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  6. A nucleoside differs from a nucleotide. It lacks the

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  7. Both deoxyribose and ribose belong to a class of sugars called

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  8. In a DNA strand the nucleotides are linked together by

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  9. The first translated codon in any mRNA binds to an anticodan is

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  10. A prokaryotic gene of 600 nucleotides long can code for a polypeptide ...

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  11. All of the following are transcribed from DNA except

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  12. All of the following would be found in a eukaryotic cell except

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  13. Which of the following is transcribed and then translated to form a pr...

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  14. How many spirals (twins or helices) a DNA of 2000 base pairs will have...

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  15. An prokaryotic gene typically has all of the followings features excep...

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  16. In some viruses, DNA is synthesised by using RNA as template, Such a D...

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  17. Who suggested that an intermediate RNA molecule would be needed to rea...

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  18. One-gene-one enzyme hypothesis was proposed by :-

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  19. Experiments using N15 (heavy nitrogen) to confirm the semiconserative ...

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  20. The minimum length of cistron in base pair, which synthesis a polypept...

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