Explanation
Although it is important for the structure of chromatin,H1 is not part of the nucleosome particle. Therefore, the answer is D) H1.
The nucleosome is the basic unit of chromatin, consisting of DNA wrapped around a core of eight histone proteins (two copies of H2A, H2B, H3, and H4). These histones are responsible for organizing and compacting the DNA into a more condensed structure, allowing for the efficient packaging of the genetic material in the nucleus.
H1, also known as the linker histone, binds to the DNA between nucleosomes and helps to stabilize higher-order chromatin structure. Although H1 is an important component of chromatin, it is not considered part of the nucleosome particle itself.
