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The sequence of structural genes in lac...

The sequence of structural genes in lac operon is

A

Lac A , Lac Y , Lac Z

B

Lac A , Lac Z , Lac y

C

Lac Y, Lac Z, LAC A

D

Lac Z , Lac Y, Lac A

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The correct Answer is:
d
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Sequence of structural genes of lac operon is

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. Identify the correct sequence of the structural genes in the lac operon.

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ERRORLESS -MOLECULAR BASIS OF INHERITANCE-Molecular Basis Of Inheritance
  1. A triplet codon means :

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  2. Two or more codons coding for one amino acid

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  3. The sequence of structural genes in lac operon is

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

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

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

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

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  8. Select the incorect statemetn(s)

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  9. Out of 64 condon, the number of condns with GGG is

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

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  11. Which of the following amino acid has hydroxyl methyl gruop as its gr...

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  12. The lac operon consists of

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  13. Which one is diaminodiacrboxlic amino acid

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  14. Whihc one of the following statement is not correct

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  15. Select the two statements out of the four (A-D) given below about lac ...

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  16. The one aspect whihc ins not a salient feature of genetic code, is its...

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  17. How many effective codons are there for the synthesis of twenty amino ...

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  18. Dr. Hargovind Khorana deuced the code for which of the following amino...

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  19. Given below is a sample of a portion of DNA strand giving the base seq...

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

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