Question

Nucleosome is formed from?
A) Histone protein and RNA
B) Histone protein and DNA
c) Non-histone and histone protein
D) Phospholipid and protein

Answer 1

Hint: A nucleosome is that the basic structural unit of DNA packaging in eukaryotes. The structure of a nucleosome consists of a segment of DNA wound around eight histone proteins and resembles thread wrapped around a spool. The nucleosome is the fundamental subunit of chromatin.

Complete answer:
A nucleosome may be a basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound in sequence around eight histone protein cores. This structure is usually compared to string wrapped around a spool. Nucleosomes form the elemental repeating units of chromatin, which is employed to pack the massive eukaryotic genomes into the nucleus while still ensuring appropriate access thereto.
The most important function of DNA is to hold genes, the knowledge that specifies all the proteins that structure an organism—including information about when, in what sorts of cells, and in what quantity each protein is to be made.
The genomes of eukaryotes are divided into chromosomes, and during this section we see how genes are typically arranged on each chromosome. Additionally, we describe the specialized DNA sequences that allow a chromosome to be accurately replicated and passed on from one generation to subsequent.

Hence, the option B is the correct answer.

Note:
Histones are a family of basic proteins that accompany DNA within the nucleus and help condense it into chromatin, they're alkaline (basic pH) proteins, and their positive charges allow them to accompany DNA. they're found inside the nucleus of eukaryotic cells.