Home
Class 12
BIOLOGY
In tryptophan operon...

In tryptophan operon

A

Non-proteinaceous apporepresser is synthesised by R-gene

B

Normally chorismic acid is not converted into tryptophan

C

Repression is mostly connceted with a catabolic pathway

D

Enzymes produced by structural genes normally present in the cell

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -C) Previous Years Questions|139 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -D) (Assertion -Reason Type Questions)|20 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -A) Objective Type Questions|35 Videos

  • MOCK_TEST_20

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|31 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|38 Videos

Similar Questions

Explore conceptually related problems

Tryptophan operon is (a) Catabolic system (b) Repressible system (c) Inducible (d) Having three structural genes

Lac operon is

Lysine and tryptophan are

Lysine and tryptophan are

Lysine and tryptophan are

In tryptophan synthesis pathway, tryptophan acts as a corepressor. What is its role as a corepressor?

Lac-operon

Aporepressor is inactive repressor in Tryptophan repressible operon system. It is

You have created a fusion between trp operon and lac operon which encodes the enzymes for tryptophan biosynthesis, under the regulatory control of the lac operator. Under which of the following conditions will tryptophan synthase be induced in the strain that carries the chimeric operator fused operons ?

Assertion :- Codon for methionine & tryptophan side to be degenerate Reason : Methionine and tryptophan amino acid coded by more than one codons

AAKASH INSTITUTE ENGLISH-MOLECULAR BASIS OF INHERITANCE -ASSIGNMENT (SECTION -B) Objective Type Questions
  1. In which step of DNA profiling, nitrocellulose membrane is used ?

    Text Solution

    |

  2. Repressor of lac-operon

    Text Solution

    |

  3. Select the correct one (w.r.t. Wobble hypothesis)

    Text Solution

    |

  4. A set of genes or cDNA is immobilized on a glass slide and used in tra...

    Text Solution

    |

  5. Which of the following bond is not present in DNA ?

    Text Solution

    |

  6. If there are 81 million bases in RNA of human cell then calculate the ...

    Text Solution

    |

  7. Splicing is necessary for preparing a mature transcript and its movem...

    Text Solution

    |

  8. Majority of unusual bases are found in tRNA, T psi C loop is

    Text Solution

    |

  9. How many amino acids will be coded by the mRNA sequence - 5 C C C U...

    Text Solution

    |

  10. Identification and binding of RNA polymerase to the promoter sequence...

    Text Solution

    |

  11. Repetitive sequence are stretches of DNA with repeated bases many ti...

    Text Solution

    |

  12. The microsatellites have simple sequence of repeated

    Text Solution

    |

  13. The DNA strand showing replication using Okazaki fragments also show...

    Text Solution

    |

  14. Prokaryotic transcription mechanism requires involvement of only one...

    Text Solution

    |

  15. Pribnow box is consensue of bases forming a binding site for E.coi...

    Text Solution

    |

  16. In tryptophan operon

    Text Solution

    |

  17. In tailing, adenylate residues are added at 3 end

    Text Solution

    |

  18. For every single amino acid incorporated in peptide chain ATP and...

    Text Solution

    |

  19. In t-RNA

    Text Solution

    |

  20. The one aspect which is not a salient feature of genetic code, is its...

    Text Solution

    |