Which of the following is the correct order of the levels of DNA packaging in eukaryotic chromosomes?
A)nucleosome → chromatin fiber → looped domains → heterochromatin
B)nucleosome → looped domains → chromatin fiber → heterochromatin
C)heterochromatin → nucleosome → chromatin fiber → looped domains
D)chromatin fiber → heterochromatin → nucleosome → looped domains
E)chromatin fiber → nucleosome → looped domains → heterochromatin

Question

Quizplus · Accepted Answer

The correct order starts with the nucleosome, which is the fundamental unit of chromatin, consisting of DNA wrapped around histone proteins. This forms the chromatin fiber when nucleosomes pack together. The chromatin fiber is then organized into looped domains, which can further compact into heterochromatin, a tightly packed form of DNA.

Which of the Following Is the Correct Order of the Levels