Genetic engineering, altering the inherited characteristics of an organism in a predetermined way, by introducing into it a piece of the genetic material of another organism. Genetic engineering offers the hope of cures for many inherited diseases, once the problem of low efficiencies of effective transfer of genetic material is overcome. Another development has been the refinement of the technique called cloning, which produces large numbers of genetically identical individuals by transplanting whole cell nuclei. …showed first 75 words of 606 total…

…showed last 75 words of 606 total…study of identical twins reared apart. Twins Jim Springer and Jim Lewis, separated at birth in 1939, were reunited 39 years later in a study of twins at the University of Minnesota. Both had married and divorced women named Linda, married second wives named Betty and named their oldest sons James Allan and James Alan. Both drove the same model of blue Chevrolet, enjoyed woodworking, vacationed on the same Florida beach, and both had dogs named Toy.