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Chapter 14: Q. 8 (page 367)

In eukaryotes, what is the DNA wrapped around? a. single-stranded binding proteins b. sliding clamp c. polymerase d. histones

Short Answer

Expert verified

Option d is correct.

Step by step solution

01

Step 1. Introduction

The packaging of DNA is very complex in Eukaryotic organisms. The total length of the DNA helix of a mammalian cell is approximately 2,2 meters and it is fit into a small-sized nucleus.

02

Step 2. Explanation of the correct option

The correct option is d because the DNA helix is negatively charged and it is associated with a set of positively charged basic proteins called histone. Hence DNA is wrapped around histone protein.

03

Step 3. Explanation of the incorrect option.

Option a is incorrect because DNA is wrapped around a histone protein that is positively charged instead of a single-stranded binding protein.

Option b is incorrect because DNA is wrapped around histone protein that is positively charged instead of a sliding clamp.

Option c is incorrect because DNA is wrapped around histone protein that is positively charged instead of normal polymerase.

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