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In E. Coli, during lactose metabolism re...

In E. Coli, during lactose metabolism repressor binds to : -

A

Regulator gene

B

Operator gene

C

Strcutural gene

D

Promoter gene

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The correct Answer is:
D
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In E. coli, Cairns proved

Select the two correct statements out of the four (1-4) given below about lac operon. 1. Glucose or galactose may bind with the repressor and inactivate it 2. In the absence of lactose the repressor binds with the operator region 3. The z-gene codes for permease 4. This was elucidated Francois Jacob and Jacque Monod The correct statements are :

Which enzyme is produced during lactose catabolism by E.coli?

DNA of E.Coli is :

E coli. is:

In E.coli replication starts at :

In E. coli, an operator gene combines with

Jacob and Monad studied lactose metabolism in E. coli and Proposed operon concept , which is appplicable for

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The end prodict of metabolic panthway may bind a repressor to make the latter active enough to bind to operator. In this case the end-product is called :-

AAKASH INSTITUTE ENGLISH-MOLECULAR BASIS OF INHERITANCE -ASSIGNMENT (SECTION -C) Previous Years Questions
  1. At the time of organogenesis genes regulate the process at different l...

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  2. A mutant strain of T4 – Bacteriophage, R-II, fails to lyse the E-Coli ...

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  3. In E. Coli, during lactose metabolism repressor binds to : -

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  4. In a DNA percentage of thymine is 20 . What is the percentage of guan...

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  5. Out of 64 codons, 61 codons code for 20 types of amino acid it is call...

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  6. Jacob and Monad studied lactose metabolism in E. coli and Proposed ope...

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  7. Exon part of mRNAs have code for

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  8. Which form of RNA has a structure resembling clover leaf ?

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  9. Which of the following reunites the exon segments after RNA splicing ?

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  10. During translation initiation in prokaryotes, a GTP molecule is needed...

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  11. In the genetic code dictionary , how many codons are used to used to ...

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  12. The telomeres of eukaryotic chromosomes consist of short sequences of

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  13. What does lac refer to in what we call the lac operon?

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  14. Degeneration of a genetic code is attributed to the

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  15. During transcription, the site of DNA molecule at which RNA polymerase...

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  16. Whate would happen if in a gene encoding a polypeptide of 50 amino aci...

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  17. Which one of the following triplet codes , is correctly matched with i...

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  18. DNA fingerprinting refers to

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  19. During transcription , the nucleotide sequence of the DNA strand that...

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  20. After a mutation at genetic locus the character of an organism changes...

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