Which of the following represents the order of increasingly higher levels of organization of chromatin?
A) 30-nm chromatin fiber, nucleosome, looped domain
B) nucleosome, looped domain, 30-nm chromatin fiber
C) looped domain, 30-nm chromatin fiber, nucleosome
D) nucleosome, 30-nm chromatin fiber, looped domain
Answer: D) nucleosome, 30-nm chromatin fiber, looped domain