The dna of eukaryotes is subdivided into chromosomes, that consist of a number of chromosomes whose dna is associated with various proteins. The chromosomes become more tightly packed at mitosis and become aligned on the metaphase plate. Each chromosome has a characteristic length and banding pattern.
in prokaryotes, chromosomal dna is circular, and the entire genome is carried on one chromosome.
See: c banding, g banding. a threadlike body in the cell nucleus that carries the genes in a linear order.The structures found within a cell that contain the genetic information of an organism. this genetic information is dna or mrna, deoxyribonucleic acid and messenger ribonucleic acid respectively.