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In the lac operon, the structural genes ...

In the lac operon, the structural genes are switched off when

A

Repressor binds to poerator

B

Repressor binds to promotor

C

Repressor binds to regular

D

Repressor binds to inducer

Text Solution

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The correct Answer is:
a

a) A short sequence of DNA where the repessor binds preventing RNA polymerase from attaching to the promoter this is called on/off switch of transcription.
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ERRORLESS -MOLECULAR BASIS OF INHERITANCE-Molecular Basis Of Inheritance
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  2. Terminator gene

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  3. In the lac operon, the structural genes are switched off when

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  6. Triplet codon in genetics is

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  7. The lac operon is turned on when allolactose molecules bind to

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

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  9. Anticodon is

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  10. A triplet codon means :

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  11. Two or more codons coding for one amino acid

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  12. The sequence of structural genes in lac operon is

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  13. In regulation of gene expression in prokaryotes Lactose acts as the...

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  14. Which of the following group of codons code for amino acid serne

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  15. Which conserverd motifs are found in E.coli genes

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  16. Differentiation of organs and tissues in a develping organism, is asso...

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  17. Select the incorect statemetn(s)

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  19. Select the correct bases of DNA,RNA and amino acid of beta chain resul...

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