The correct order of compaction from least compacted to most compacted would be
A) naked DNA, 30 nm fiber, nucleosome, radial loop, metaphase chromosome.
B) naked DNA, radial loop, 30 nm fiber, nucleosome, metaphase chromosome.
C) naked DNA, nucleosome, 30 nm fiber, radial loop, metaphase chromosome.
D) naked DNA, metaphase chromosome, radial loop, 30 nm fiber, nucleosome.

Question

The correct order of compaction from least compacted to most compacted would be
A) naked DNA, 30 nm fiber, nucleosome, radial loop, metaphase chromosome.
B) naked DNA, radial loop, 30 nm fiber, nucleosome, metaphase chromosome.
C) naked DNA, nucleosome, 30 nm fiber, radial loop, metaphase chromosome.
D) naked DNA, metaphase chromosome, radial loop, 30 nm fiber, nucleosome.

Quizplus · Accepted Answer

The correct order of compaction from least compacted to most compacted is naked DNA, nucleosome, 30 nm fiber, radial loop, metaphase chromosome. This is because a naked DNA strand is the least compacted and it gets wrapped around histone protein molecules to form nucleosomes. These nucleosomes then fold into a 30 nm fiber, which are arranged into radial loops. Finally, these radial loops organize into the highly compacted metaphase chromosome.

The Correct Order of Compaction from Least Compacted to Most