Question

DNA strand wound around a histone octamer forms a complex called a ______.

Answer 1

DNA strand wound around a histone octamer forms a complex called a nucleosome.

Explanation:

A nucleosome is the fundamental structural unit of chromatin, often described as beads on a string. It consists of a segment of DNA wrapped roughly 1.65 times around a core of eight histone proteins (the histone octamer). This structure compacts long DNA molecules so they fit efficiently inside the microscopic cell nucleus.