試題詳解

複選題
28. Which of the following statements is/are TRUE?
(A) A nucleosome contains 6 histones within its core.
(B) Chromatin is composed of DNA and protein.
(C) Nucleosomes are composed of about 100 bp of DNA wrapped around a histone core.
(D) DNA methylation is the only known natural modification of DNA. It affects cytosine bases.
(E) Histones have highly conserved sequences among eukaryotes.