What are the terms describes the dna-protein complexes that look like beads on a string?

Answer: The question is incomplete, below is the complete question.

What are the terms describes the dna-protein complexes that look like beads on a string?

A) Chromatin

B) 30-nanometer fibre

C) Histones

D) Nucleosome

The correct answer is option D

Explanation: A Nucleosome is the basic fundamental unit of a DNA, and the fundamental sub-unit of a Chromatin.

The Nucleosome is the basic packing unit of DNA, it is built from histone proteins. A nucleosome is made up of 8 histones proteins resembling a thread wrapped round a spool.

The smallest bundle of DNA is known as a Nucleosome, a Nucleosome is produced through interaction between DNA and histone proteins.