Threadlike Structures Composed of DNA and Protein That Fill a Cell's

Question

Threadlike structures composed of DNA and protein that fill a cell's nucleus are called
A) chromosomes.
B) chromatin.
C) ribosomes.
D) organelles.

Accepted Answer

Chromatin is a threadlike structure that is composed of DNA and protein and fills a cell's nucleus. Chromosomes are condensed and tightly coiled versions of chromatin that are visible during cell division. Ribosomes are not found in the nucleus, and organelles refer to any specialized structures within a cell, not specifically the DNA and protein-containing structures within the nucleus.