Which of the following statements correctly describes the structural composition of a eukaryotic nucleosome core particle?

A) It consists of a single loop of double-stranded DNA wrapped around an octamer formed by eight distinct types of core histone proteins.

B) It consists of approximately 147 base pairs of DNA wrapped around an octamer composed of two copies each of histones H2A, H2B, H3, and H4.

C) It consists of negatively charged histone proteins that bind directly to positively charged nitrogenous bases in the major groove of DNA.

D) It consists of an RNA-protein scaffold that permanently anchors condensed heterochromatin fibers to the nuclear envelope.

Chromosomes and chromatin Knowledge-Based Practice

Biology · Molecular Genetics · Biology · DNA Structure & Replication

1 Biology practice questions on Chromosomes and chromatin. Questions that assess core concepts and understanding.

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