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Operon contains...

Operon contains

A

Operator + Regulator genes

B

Operator + Regulator + Structural genes

C

Operator + Regulator + Repressor genes

D

Operator + Regulator + Structural + Repressor + Promoter genes

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The correct Answer is:
d
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Operon is

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The lac operon consists of a regulation gene and three structural gene. The lactose acts as inducer. In the presence of an Inducer such as lactose, the repressor is in inactivated during the interaction. This allows RNA polymerase access to the promoter and transcription proceeds. The repressor is synthesized which in turn binds with the operator region of the operon and prevents RNA polymerase from transcribing the operon. The lac operon of E. coli contains genes involved in lactose metabolism. It's expressed only when lactose is _____ (1)and glucose is _____(2).

The lac operon consists of :

Lac operon consists of

The lac operon consists of

In Operon concept, regulator gene functions as

Lac operon will not remain active if culture medium containes :-

ERRORLESS -MOLECULAR BASIS OF INHERITANCE-Molecular Basis Of Inheritance
  1. Given below is a sample of a portion of DNA strand giving the base seq...

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  2. The inducer for switching 'on' the lac operon in bacteria is

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  3. Operon contains

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  4. Which enzyme/s will be produced in a cell in which there is a nonsese ...

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  5. In ans inclucible operon, the genes are

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  6. The figure of the lac from E. coli is shown below. Each alphabets indi...

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  7. In the given figure of the lac operon,an for inducible enzymes, Identi...

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  8. The following figure refers to transcirption in prokaryote Identify A,...

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  9. The given figure refers to the process of transcription in Eukaryotes,...

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  10. Which one of the following is wrongly matched

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  11. In lac- opeon if mutation occurs in the middle gene of the 'structural...

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  12. Whihc option is corect for the aminoacid and the total number of their...

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  13. Which amino acid determines by four gentic codes

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  14. Which of the following is required as inducer(s) for the expression of...

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  15. The amino acid trytophan is the precursor for the synthesis of

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  16. Whihc of the following pair of amino acids are acidic

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  17. If there are 999 bases in RNA that codes for a protein with 333 amino ...

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  18. All of the following are part of an operon expect

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  19. The process by which DNA of nucleus passes genetci information of m RN...

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  20. Tranlation is callled

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