The first written reference to the site of the Town House is in Hatfield's survey of 1382, when a plot of land was made available for the manor upon payment of four pence (in old money) per year to the Bishop of Durham.
CHROMOSOMES. A chromosome is a package containing a chunk of a genomeâthat is, it contains some of an organism's genes. The important word here is package: chromosomes help a cell to keep a large amount of genetic information neat, organized, and compact. Chromosomes are made of DNA and protein.
Human cells have 46 chromosomes. 23 nearly-identical pairs Structure of Chromosomes Chromosomes are composed of a complex of DNA and protein called chromatin that condenses during cell division DNA exists as a single, long, double-stranded fiber extending chromosomeâs entire length.