difference between chromatid and chromosome
Nirmala Agarwal. Advertisements: Chromosome: 1. Chromosomes are single physical structure and hereditary traits, which are transmitted through them. 2. The structure of chromosome is best studied at the metaphase, which possesses two chromatids held by a single centromere. Chromatid: 1. Each chromosome consists of two symmetrical strands called chromatids, formed during S-phase. 2. Each chromatid is half of the metaphase chromosome.
Chromosomes are formed of compacted chromatin where DNA is condensed at least by 10,000 times onto itself. The major structures in DNA compaction; DNA, the nucleosome, the 10nm beads-on-a-string fibre (chromatin), 30nm fibre (chromatin), and the metaphase chromosomes.