Home
Class 12
BIOLOGY
In Escherichia coli, the product of i ge...

In Escherichia coli, the product of `i` gene combines with

A

Operator gene to switch off structural genes

B

Inducer gene to switch off structural genes

C

Operator gene to switch on structural genes

D

Regulator gene to switch off structural genes

Text Solution

Verified by Experts

The correct Answer is:
A
In Escherichia coil, the product of `i` gene (repressor protein) combines with operator gene to switch off structural genes.
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    A2Z|Exercise Section A: Topicwise Questions (topic 8:(human Genome Project) Salient Features Of Human Genome, App|12 Videos

  • MOLECULAR BASIS OF INHERITANCE

    A2Z|Exercise Section A: Topicwise Questions (topic 9: Dna Fingerprinting)|16 Videos

  • MOLECULAR BASIS OF INHERITANCE

    A2Z|Exercise Section A: Topicwise Questions (topic 6: Translation)|24 Videos

  • MOCK TEST 3

    A2Z|Exercise EXERCISE|90 Videos

  • ORGANISMS AND POPULATIONS

    A2Z|Exercise Section D: Chapter-end Test|50 Videos

Similar Questions

Explore conceptually related problems

Escherichia coli is

In E. coli, an operator gene combines with

DNA of Escherichia coli is

In operon concept, the operator gene combines with :

In Escherichia coli, lac operon is induced by :

In E. coli an operator gene combine with

Escherichia coli present in human colon is

Escherichia coli with mutated z gene of lac operon cannot grow in medium containing only lactose as the source of energy because

In the lactose operon of Escherichia coli what is the function of promoter ?

A2Z-MOLECULAR BASIS OF INHERITANCE-Section A: Topicwise Questions (topic 7: Regulation Of Gene Expression) The Lac Operon
  1. Recognise the figure and find out the correct matching.

    Text Solution

    |

  2. The lac operon is turned on when allolactose molecules bind to

    Text Solution

    |

  3. An environmental agent that triggers transcription from an operon is a...

    Text Solution

    |

  4. The genes are responsible for growth and differentiation in an organis...

    Text Solution

    |

  5. In operon model, regulator gene functions as

    Text Solution

    |

  6. Operon contains

    Text Solution

    |

  7. In Escherichia coli, the product of i gene combines with

    Text Solution

    |

  8. Operon is

    Text Solution

    |

  9. Escherichia coli with mutated z gene of lac operon cannot grow in medi...

    Text Solution

    |

  10. Match the column and choose the correct option.

    Text Solution

    |

  11. Lac operon concept was proposed by

    Text Solution

    |

  12. Escherichia coli growing on medium having glucose is transferred to la...

    Text Solution

    |

  13. In Lac-operon, repressor protein binds to

    Text Solution

    |

  14. A gene of operon which forms the repressor protein is

    Text Solution

    |

  15. Operon model of gene regulation and organisation of prokaryotes was pr...

    Text Solution

    |

  16. Sequence of structural genes of lac operon is

    Text Solution

    |

  17. What is correct gene expression pathway ?

    Text Solution

    |

  18. Lac operon 'inducer lactose' serves as an anzyme substrate for anzyme

    Text Solution

    |

  19. In lac operon model, lactose functions as

    Text Solution

    |

  20. In lac operon genes a, i, y and z code for

    Text Solution

    |