Question

question 5
dna molecules are in the nucleus:
a complexed with protein, forming nucleoli
b complexed with protein, forming chromatin fibers
c as free molecules
d complexed with protein on the nuclear envelope

Explanation:

In the nucleus, DNA is not free. It is associated with proteins. Nucleoli are involved in ribosome synthesis and not the complex of DNA and protein. DNA - protein complex is called chromatin fibers. DNA is not located on the nuclear envelope as a complex with protein.

Answer:

B. complexed with protein, forming chromatin fibers