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In lac operon , the genes a, I, y and z ...

In lac operon , the genes a, I, y and z code respectively for

A

Repressor protein, permease, `beta`-galactosidase, transacetylase

B

Transacetylase, permease, `beta`-galactosidase, repressor protein

C

Permease, transacetylase, repressor protein, `beta`-galactosidase

D

Transacetylase, repressor protein, permease, `beta`-galactosidase

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The correct Answer is:
D
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MODERN PUBLICATION-MOLECULAR BASIS OF INHERITANCE -COMPETITION FILE OBJECTIVE TYPE QUESTIONS (Multiple Choice Questions (MCQs) :)
  1. The genetic material of a virioid is :

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  2. Which among the following codons not have t-RNAs ?

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  3. In lac operon , the genes a, I, y and z code respectively for

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  4. In humans most number of genes are located on chromosome

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  5. The codon which has dual function is Or polypeptide synthesis in p...

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  6. The enzyme required to catayze the polymerzatio of deoxynucleotides is

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  7. To which of the following factors, RNA polymerase binds transiently to...

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  8. Read the following statements and choose the correct option. A. Nitr...

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  9. Select the correct statement regarding protein synthesis :

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  10. The enzyme (s) responsible for the transcription of snRNA in eukaryote...

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  11. The pressence and position of which one of the followihng defines the ...

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  12. which of the following is the correct sequence of units os genetics ar...

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  13. DNA fragments generated by the restriction endonucleases in a chemical...

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  14. If a radiolabel is used to tag a DNA molecule, the technique used to l...

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  15. The synthesis of DNA is discontinuous on one strand of the replication...

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  16. The double helix of DNA is made of polynucleotide chains where backbon...

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  17. Among the RNA polymerases, the RNA polymerase-II transcribes:

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  18. Select the correct option

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  19. Which one of the following is wrongly matched?

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  20. Transformation was discovered by

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