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

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.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.