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The operator gene of lac operon is ' tur...

The operator gene of lac operon is ' turned on ' when lactose molecules bind to

A

operator gene

B

repressor protein

C

mMRA

D

promoter site

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The correct Answer is:
B
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The lac operon is turned on when allolactose molecules bind to

The promoter gene in lac operon :

The Lac operon gets switched on when

In lac operon i gene codes for :

Sequence of structural genes of lac operon is

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The sequence of genes in lac operon in E. coli is :

In E.coli, the lac operon gets switched on when :

Lactose (Lac) operon is regulated by :

ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (A) Taking it together (Assorted questions of the Chapter for Advanced Level Practice
  1. Aporepressor is inactive repressor in Tryptophan repressible operon sy...

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  2. During protein synthesis, a ribosome moves from 5' to 3' end of mRNA t...

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  3. The operator gene of lac operon is ' turned on ' when lactose molecule...

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  4. During transcriptions, the RNA that forms from DNA is

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  5. Name the RNA type which helps in the processing of rRNA in the nucleus

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  6. The DNA strand that has the polarity 3'-5' and acts as a template, is ...

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  7. Process of codon recognition occur during

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  8. The ribosome acts as a catalyst for the formation of

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  9. For initiation of translation, the ribosome first binds to

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  10. Regulation of lac operon by repressor is referred to as -

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  11. mRNA is also known as

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  12. The bond present between the sugar and phosphate group of DNA is

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  13. The pyrimidines found in RNA are

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  14. The RNA which carries hereditary information in riboviruses and viroid...

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  15. The genomic RNA is double stranded in

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  16. RNA which constitutes 5% of the total RNA

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  17. DNA acts as a template for the synthesis of

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  18. tRNA attaches amino acids at its

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  19. Segments of mRNA removed during splicing are

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  20. Which one is soluble?

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