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Which enzyme/s will be produced in a cel...

Which enzyme/s will be produced in a cell in which there is a nonsense mutation in the lac Y gene?

A

Lactose permease

B

Transacetylase

C

Lactose permease and transacetylase

D

`Beta`-galactosidase

Text Solution

Verified by Experts

The correct Answer is:
D
If nonsence mutation occurs in lac y gene on that time it forms only z cistron and when z cistron is translated it form `beta` galactosidase
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ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (C) Medical entrance s gallery
  1. Statement A : The primary transcript produced in eukaryotic is transla...

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

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

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

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

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

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  7. What is correct gene expression pathway ?

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  8. What is not true for genetic code ?

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

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

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

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

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  13. Select the true statement

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

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

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

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

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  18. DNA has equal number of adenine and thymine residuces (A=T) and equal ...

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  19. Given below is a sample of a portion of DNA strand giving the base seq...

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  20. Peptide synthesis inside a cell takes place in

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