試題詳解

7. Which of the following about nucleosomes is NOT TRUE?
(A) A nucleosome is the basic structural unit of DNA packing in eukaryotes
(B) The structure of a nucleosome consists of a segment of DNA wound around histone proteins
(C) The nucleosome is the fundamental subunit of euchromatin but not heterochromatin
(D) Nucleosomes carry epigenetic information in the form of covalent modifications of their histone proteins