Six billion steps of DNA are contained in a single cell. This DNA can be stretched six feet, but it is coiled up in the cell's nucleus, which measures only 1/2500 of an inch in diameter.
January 10,20l3
Six billion steps of DNA are contained in a single cell. This DNA can be stretched six feet, but it is coiled up in the cell's nucleus, which measures only 1/2500 of an inch in diameter.