Final answer:
Nucleosomes, consisting of eight histone molecules, are associated with chromatosomes.
Step-by-step explanation:
Within the nucleus, DNA is wrapped around histone proteins to form nucleosomes, which are the basic units of chromatin. Each nucleosome contains eight histone molecules, two copies each of H₂A, H₂B, H3 and H4. The DNA is tightly wrapped around the histones, forming a structure known as the 'beads on a string.' These nucleosomes are organized close together to form a 30 nm fiber, which provides further compaction of the DNA.