How Do Changes in Histone Modifications Lead to Changes in Chromatin

question 68

Multiple Choice

How do changes in histone modifications lead to changes in chromatin structure?

• A)They directly lead to changes in the positions of the core histones.
• B)They change the affinity between the histone octamer and the DNA.
• C)They help recruit other proteins to the chromatin.
• D)They cause the histone N-terminal tails to become hyperextended.

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Definitions:

Lakes

Large bodies of water surrounded by land, usually freshwater, but they can also be salty in some regions.

Groundwater

Water that is found underground in the cracks and spaces in soil, sand, and rock, which can form aquifers from which water can be extracted for use.

Ice Caps

Large mass of ice that covers less than 50,000 square kilometers of land area, usually found in high-latitude regions; smaller than ice sheets.

Rivers

Large natural streams of water flowing in a channel to the sea, a lake, or another such stream.