Which of the following statements describes the eukaryotic chromosome?
A) It is composed of DNA alone.
B) The nucleosome is its most basic functional subunit.
C) The number of genes on each chromosome is different in different cell types of an organism.
D) It consists of a single linear molecule of double-stranded DNA plus proteins.
E) Active transcription occurs on heterochromatin but not euchromatin.

Question

Quizplus · Accepted Answer

The eukaryotic chromosome consists of a single linear molecule of double-stranded DNA plus proteins. This DNA is packed into chromatin, which is further organized into loops and domains.

Answer: B and C
 The nucleosome is the most basic functional subunit of the eukaryotic chromosome, consisting of DNA wrapped around a core of histone proteins. The number of genes on each chromosome is different in different cell types of an organism, with some genes being expressed in certain cells but not others.

Which of the Following Statements Describes the Eukaryotic Chromosome