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Describe the lac operon in detail....

Describe the lac operon in detail.

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Lac operon is

Describe how the lac operon operates, both in presence and absence of inducer.

Describe how the lac operon operates, both in the presence and absence of an inducer in E. coli.

The lac operon is an example of :

Define operon. Describe the regulation of inducible system with the help of lac-operon.

(a) State the arrangement of different genes that in bacteria is referred to as operon. (b) Describe the role of lactose in lac operon. (c) Draw a schematic labelled illustration of lac operon in a switched on state.

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

In the function of the lac operon in E-coli, the lac genes z, y, a are transcribed in the presence of lactose because

MODERN PUBLICATION-MOLECULAR BASIS OF INHERITANCE -REVISION EXERCISES (Short Answer Type-II Questions)
  1. Owsald Avery and others have continued Griffith transforming principle...

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  2. (a) What are Okazaki segments? (b) Differentiate between leading and...

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  3. Describe the lac operon in detail.

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  4. List the raw materials and its functions involved in protein synthesis...

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  5. The sailent feature of genetic code is

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  6. DNA replication is:-

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  7. Differentiate between prokaryotic DNA and eukaryotic DNA.

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  8. With the help of Meselson and Stahl experiment prove that DNA mode of ...

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  9. Okazaki fragments are :

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  10. DNA is the better genetic material than RNA. Justify the statement wit...

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  11. What do you mean by intron and exon?

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  12. Describe briefly the Griffith's experiment?

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  13. ‘DNA replication is said to be semiconservative.' Why? Describe the ex...

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  14. Describe in brief the steps of initiation phase of transcription.

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  15. Write functions of mRNA, tRNA and rRNA.

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  16. (a) Draw the structure of the intiiator tRNA adaptor molecule. (b) Wh...

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  17. Explain the dual function of AUG codon. Give the sequence of bases it ...

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  18. How is the translation of mRNA terminated ? Explain.

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  19. What are Satellite DNA in a genome? Explain their role in DNA fingerpr...

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  20. A tRNA is charged with amino acid methionine : (i) Name the process ...

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