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What does ''lac'' refer to in what we ca...

What does ''lac'' refer to in what we call the lac operon ?

A

Lac insect

B

The number , 1,00,000

C

Lactose

D

Lactase

Text Solution

Verified by Experts

The correct Answer is:
C
Lac operon refers to the DNA sequence in the genome of the bacterium E. coli encodong enzymes involved in lactose uptake and metabolism.
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Describe the lac operon in detail.

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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-MOLECULAR BASIS OF INHERITANCE-EXERCISE
  1. During transcription, if the nucleotide sequence of the DNA strand tha...

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  2. DNA fingerprinting refers to

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  3. What does ''lac'' refer to in what we call the lac operon ?

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  4. During transcription, the site of DNA molecule at which RNA polymerase...

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  5. chromosomes in a bacterial cell can be 1-3 in number and :

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  6. In the genetic code dictionary, how many codons are used to code for a...

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  7. What would happen if in a gene encoding a polypeptide of 50 amino acid...

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  8. Degeneration of a genetic code is attributed to the :

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  9. During translation initiation in prokaryotes, a GTP molecule is needed...

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  10. Which one of the following triplet codes, is correctly matched with it...

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  11. Exon part of m- RNA code for

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  12. Which of the following reunites the exon segments after RNA splicing ?

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  13. Nucleus of a donor embryonal cell/ somatic cell is transferred to a an...

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  14. Which statements is correct for bacterial transduction ?

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  15. In DNA percentage of thymine is 20, then what is the percentage of gua...

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

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

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

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  19. In negative operon

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

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