What general strategies are used in packaging DNA to fit into a nucleus?
A) None, the DNA is just wadded up in the nucleus.
B) Coiling only.
C) Coiling and charge attraction.
D) Only a small part of each chromosome is in each nucleus.
E) Shrinking.

Question

Quizplus · Accepted Answer

DNA is packaged in the nucleus through coiling and charge attraction. The DNA is first wrapped around histone proteins, forming nucleosomes. These nucleosomes then coil tightly to form chromatin fibers. The chromatin fibers can further condense into even tighter structures during mitosis, forming visible chromosomes. Charge attraction also plays a role in packaging, as the negatively charged DNA is attracted to positively charged proteins and ions in the nucleus. Therefore, both coiling and charge attraction are used in packaging DNA to fit into a nucleus.

What General Strategies Are Used in Packaging DNA to Fit