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The lac operon consists of :...

The lac operon consists of :

A

four regulatory genes only

B

one regulatory gene and three structural genes

C

two regulatory genes and two structural genes

D

three regulatory genes and three structural genes

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The correct Answer is:
D
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MODERN PUBLICATION-MOLECULAR BASIS OF INHERITANCE-EXERCISE
  1. Mobile genetic sequence are called :

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  2. How many effective codons are there for the synthesis of twenty amino ...

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  3. The lac operon consists of :

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  4. Out of 64 codons , 61 codons code for 20 types of amino acids , it is ...

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  5. In Hershey and chase experiments, radioactive P was used to culture b...

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  6. Which one of the following triplet codons is a chain termination codon...

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  7. The unequivocal proof of DNA as the genetic material came from the stu...

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  8. The central dogma of protein synthesis is :

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  9. Restriction enzyme Eco RI cuts the DNA between bases G and A only when...

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  10. The lac operon is turned on when all lactose molecules bind to

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  11. Some amino acids are coded by more than one codon hence the code is :

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  12. The codon which has dual function is :

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

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  14. Which strain of diplococcus pneumoniae is/are virulent ?

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  15. The phenomenon discovered by griffith that proves DNA as genetic mater...

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  16. Which is not associated with DNA ?

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  17. Proteins are synthesized in the process:

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  18. Which one is codes for amino acids ?

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  19. Lactose in lac operon acts as :

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  20. Termination codon is :

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