The relationship between chromosomes and DNA? Ok here goes.
DNA is that double helix structure thing. It consists of phosphates, sugars and the bases - A, T, C, G (you dont need to know the names).
Chromosomes consist of DNA, they are found in the nucleus of a cell.
Have a look at
www.biology-online.org ... theres a lot of stuff there... cos your question is very general... and to tell the truth, I find the gene/chromosome/DNA relationship hard to remember as well! I'll have to check my notes.