Home
Class 12
BIOLOGY
In Lac operon , i gene codes for :...

In Lac operon , i gene codes for :

A

inducer

B

repressor

C

Promotor

D

`beta`-galactosidase

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MINERAL NUTRITION

    MBD PUBLICATION|Exercise Question Bank|75 Videos
  • MORPHOLOGY OF FLOWERING PLANTS

    MBD PUBLICATION|Exercise QUESTION BANK|186 Videos

Similar Questions

Explore conceptually related problems

The sequence of genes In lac operon in E. coli are :

Inducible operon

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

Lactose ( lac ) operon is regulated by :

The repressor in case of lac operon will bind in absence of lactose :

In E. coli , the lac operon gets switched on when :

MBD PUBLICATION-MOLECULAR BASIS OF INHERITANCE-QUESTION BANK
  1. The codon for anticodon 3^'-UUA-5^' is :

    Text Solution

    |

  2. Splicing of RNA depends on :

    Text Solution

    |

  3. In Lac operon , i gene codes for :

    Text Solution

    |

  4. Which of the following is important for transcription ?

    Text Solution

    |

  5. Production of a human protein in bacteria by genetic engineering is po...

    Text Solution

    |

  6. In humans most number of genes are located on chromosome:

    Text Solution

    |

  7. The enzyme required to catalyze the polymerisation of deoxynucleotides...

    Text Solution

    |

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

    Text Solution

    |

  9. In the synthesis of which of the following the DNA molecule is not dir...

    Text Solution

    |

  10. Which one of the following hydrolyses internal phosphodiester bonds in...

    Text Solution

    |

  11. The enzymes responsible for the transcription of SnRNAs in eukaryotes ...

    Text Solution

    |

  12. Match List I with List II and select the correct option. (MBDSUSBIOXII...

    Text Solution

    |

  13. DNA replication starts in the 5^' rarr 3^' direction because :

    Text Solution

    |

  14. Transcription requires which of these enzyme ?

    Text Solution

    |

  15. Genes that are continously functional and whose regulations are at tis...

    Text Solution

    |

  16. DNA duplication takes place during :

    Text Solution

    |

  17. Dr.khorana and his colleagues synthesized a RNA molecule with repeatin...

    Text Solution

    |

  18. Which one of the following is correctly matched?

    Text Solution

    |

  19. One gene - One enzyme hypothesis was postulated by :

    Text Solution

    |

  20. Which antibiotic inhibits interaction between tRNA and mRNA during bac...

    Text Solution

    |