function of chromosomal dna
Chromosomal DNA and Its Packaging in the Chromatin Fiber. The most important function of DNA is to carry genes, the information that specifies all the proteins that make up an organismâincluding information about when, in what types of cells, and in what quantity each protein is to be made.lthough long strings of nucleosomes form on most chromosomal DNA, chromatin in a living cell probably rarely adopts the extended âbeads on a stringâ form. Instead, the nucleosomes are packed on top of one another, generating regular arrays in which the DNA is even more highly condensed.