With respect to the interconversion between open and condensed chromatin shown below: Which of the directions (i) or (ii) would you anticipate would be the consequence of the following types of chromatin modification?
a) Histone acetylation.
b) DNA methylation.
c) Histone methylation.
d) Histone deacetylation.
e) DNA demethylation.

Question

With respect to the interconversion between open and condensed chromatin shown below:  Which of the directions (i) or (ii) would you anticipate would be the consequence of the following types of chromatin modification? 
a) Histone acetylation.
b) DNA methylation.
c) Histone methylation.
d) Histone deacetylation.
e) DNA demethylation.

Quizplus · Accepted Answer

The Answer is a) (ii)
b) (i)
c) (i) or (ii). It depends on the specific modification. Thus: (i) in the case of trimethylation of histone H3K9 or H4K20, but (ii) in the case of H3K4 methylation
d) (i)
e) (ii)

With Respect to the Interconversion Between Open and Condensed Chromatin