Chromosomes
Most Chromosomes are made in the chromatin. They are composed DNA so the chromosomes contain genetic information. Every species has a set of chromosomes. Humans have 46 but when they reproduce they pass on half of their set of chromosomes. The chromosomes work with all the other organelles in the cell.
Chromatin
Chromatin is a double helix structure. It is found in the nucleus. Chromatin typically contains twice as many proteins as the DNA. It also works with the proteins to pack the DNA so it will fit into the nucleus.