Place the following in order from least to highest most organized DNA packing le

Question

Place the following in order from least to highest most organized DNA packing levels. least packaged DNA, Next most highly packed, 3rd most highly packed level, Most highly packaged level of DNA


Looped domain
30 nm fibers
metaphase chromosome
nucleosome

Explanation / Answer

from least to most nucleosome -> 30 nm fibers -> looped domain -> metaphase chromosome nucleosomes are smallest units of DNA packaging, where DNA wind around histones to form nucleosomes. These nucleosomes pack ino 30 nm fiber in a figure i can't quite remember Then the fiber folds onto inself again and forms looped domains And this is probably obvious, but metaphase chromosome is where DNA is in its most compact stage to make it easier for segregation during mitosis or meiosis. Hope it helps :D

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