Nucleosomes are Composed of All of the Following Except ________

Question

Nucleosomes are composed of all of the following except ________.
A) H1
B) H2
C) H3
D) H4
E) H5

Accepted Answer

Nucleosomes are composed of histone proteins, including H1, H2A, H2B, H3, and H4. H5 is not a component of nucleosomes; it is a variant of the H1 histone found in birds and some other animals, involved in the compaction of chromatin but not a core component of the nucleosome structure.