Chromatin remodeling refers to the process by which:

A. nucleosomes are repositioned to expose
different stretches of DNA to the nuclear
environment.
B. DNA strands are "straightened out" to
allow access to the proteins that carry out
transcription.
C. DNA strands are "unzipped" to allow
access to the proteins that carry out
transcription.
D. methylation occurs in CpG islands.
E. mutations change DNA structure and
therefore chromatin structure.


A

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