2 Chromosome
2 Chromosome is the second largest human chromosome. It represents almost 8% of DNA in cells. People normally have two copies of this chromosome as all other non-sex chromosomes. Chromosome two spans about 243 million base pairs. Base Pairs are two molecules (nucleotides) on opposite DNA strands that are connected. Adenine (A) forms a base pair with thymine (T), as does guanine (G) with cytosine (C) in DNA. Base pairs is how DNA is measured. There are about 1,888 genes in this chromosome. Recent studies suggest that genes on chromosome two may play an important role in human intelligence.
Human chromosome 2 is unique to the human lineage in being the product of a head-to-head fusion of two intermediate-sized ancestral chromosomes. Learn more about your family history with the Enhanced Maternal Lineage Test at GeneTree.com! Family Tree DNA to test your Y Chromosome...your Paternity Lineage Test
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