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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

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

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  2. Repressor of lac-operon

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

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

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

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

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

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

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

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

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

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  12. The microsatellites have simple sequence of repeated

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

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

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

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  16. In tryptophan operon

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

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

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  19. In t-RNA

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

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