Biology, Eighth Edition (Raven)

Chapter 10: How Cells Divide

Chromatin Remodeling

View the animation below, then complete the quiz to test your knowledge of the concept.



1.

The basic subunit of chromatin is...
A)DNA
B)nucleosome
C)histone proteins
D)HO gene
E)histone acetyltransferase
2.

Which of the following can physically block interactions between promoter DNA sequences and the proteins needed to initiate transcription?
A)RNA
B)nucleosome
C)histone proteins
D)HO gene
E)histone acetyltransferase
3.

During chromatin remodeling, which of the following is acetylated to loosen its contact with the DNA?
A)DNA
B)nucleosome
C)histone proteins
D)HO gene
E)histone acetyltransferase
4.

Chromatin rearrangement modifies the histone - DNA structure so that translation can occur.
A)True
B)False
5.

The activities of Swi/Snf and the histone acetyltransferase modify the chromatin structure of the HO promoter region into a more open conformation.
A)True
B)False
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