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In E.coli during lactose metabolism, rep...

In E.coli during lactose metabolism, repressor binds to :

A

regulator gene

B

operator gene

C

structural gene

D

promoter gene

Text Solution

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The correct Answer is:
B
In Lac operon , the repressor protein combines with the operator gene to express its functioning.
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In Lac-operon, repressor protein binds to

E coli. is:

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 :

In an E. coli culture lactose is used as food instead of glucose. If so, answer the following questions: (1) How do the bacteria respond to the above situation at genetic level? (2) If lactose is removed from the medium what will happen?

In E.coli replication starts at :

Give the names and functions of enzymes involved in lactose metabolism in E. Coli:

Jacob and Monod studied lactose metabolism in E. coli and proposed operon concept which is applicable for all :

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-MOLECULAR BASIS OF INHERITANCE-EXERCISE
  1. In DNA percentage of thymine is 20, then what is the percentage of gua...

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  2. Jacob and Monod studied lactose metabolism in E. coli and proposed ope...

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

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  4. Sequence of which of the following is used to know the phylogeny ?

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  5. In negative operon

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  6. In which direction mRNA is synthesises on DNA template ?

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  7. Gene and cistron words are sometimes used synonymously because

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  8. E. coli about to replicate was placed in a medium containing radioacti...

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  9. Due to discovery of which of the following in 1980 ' s the evolution w...

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  10. Who proposed the 'Signal hyothesis' meant for the biosynthesis of secr...

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  11. During replication of DNA , its two strands separate. Each of these se...

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  12. The Pneumococcus experiment proves that

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  13. In DNA when AGCT occurs , their association is as per which of the fol...

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  14. DNA parts which can switch their position are

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  15. Genes that are involved in turning on or off the transcription of set ...

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  16. Protein synthesis in an animal cell, takes place

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  17. Which of the following RNAs up specific amino acid (from amino acid po...

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  18. The three codons which result in the termination of polypeptide chain...

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  19. Genes are packed in bacterial chromosome by

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  20. An enzyme that joins the ends of two strands of nucleic acids is a

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