Histone Proteins Contain Internal Cores That Are Hydrophobic and Surface

question 12

Multiple Choice

Histone proteins contain internal cores that are hydrophobic and surface amino acids that are positively charged. Which of the following characteristics of DNA would best support tight binding between DNA and histones?

• A) the ring structures in DNA bases that disperse charge promote hydrophobic interactions with histone cores
• B) DNA 5' and 3' ends have negative charge responsible for stabilizing interactions with histone surfaces
• C) the DNA backbone has a net negative charge that forms ionic bonds with histones
• D) the 3.4 nm per helical turn in DNA fits around the spherical shape of the histones

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Definitions:

Monogamy

A relationship model where an individual has only one partner during their lifetime or at any one time.

Polygyny

A form of marriage in which one man is married to multiple women at the same time; it is the most common form of polygamy.

Bigamy

The act of marrying one person while still legally married to another, which is illegal in many jurisdictions.

Gay Marriage

The legal or socially recognized union of two people of the same sex.