DNA molecules are in the nucleus
A)as free molecules.
B)complexed with protein, forming chromatin fibers.
C)complexed with protein, forming nucleoli.
D)complexed with protein on the nuclear envelope.

Question

Quizplus · Accepted Answer

DNA molecules are complexed with proteins and form chromatin fibers inside the nucleus. This is essential for packaging and organization of the genetic material in the nucleus. While there are some free DNA molecules in the nucleus, the majority of DNA exists as chromatin fibers. The DNA is not complexed with proteins to form nucleoli or on the nuclear envelope.

DNA Molecules Are in the Nucleus