Chapter 32. Chapter 32

Problem-Solving Video Assessment
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Chapter 32 Problem-Solving Video Assessment

A new species of insect is discovered. This species contains two unique histones, HC and HD:

Functionally, these monomers form a novel trimeric structure composed of one HC histone and two HD histones. This histone trimer binds and organizes 110 base pair stretches of DNA.

1.

What is the charge of histone HC at pH 7?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

2.

What is the charge of histone HD at pH 7?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

3.

What is the charge of (HC)1(HD)2 trimer at pH 7?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

4.

How much of the charge on the bound DNA is neutralized by the histone trimer?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

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