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6. Molecular Basis of Inheritance
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Q1 of 71 Page 40

What is the function of histones in DNA packaging?

DNA wraps itself around a protein called histone. Histones pack into structural units called nucleosomes.


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27

To initiate translation, the mRNA first binds to:

28

In E.coli, the lac operon gets switched on when:

2

Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?

3

The enzyme DNA polymerase in E. coli is a DNA dependent polymerase and also has the ability to proof-read the DNA strand being synthesised. Explain. Discuss the dual polymerase.

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6. Molecular Basis of Inheritance
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