Summary Clone is an organism, or group of organisms, derived from another organism by an asexual (nonsexual) reproductive process. The word clone has been applied to cells as well as to organisms, so a group of cells stemming from a single cell is also called a clone. Usually the members of a clon...

Nearly half a century ago, two scientists discovered, "the secret of life." What Watson and Crick found in their Cambridge laboratory might not have been the secret of life, but it has allowed for many changes in most people's everyday life. Their finding is the structure of deoxyri...