sands of different species have gone extinct. Most were due to natural selection, while several others were due to human intervention. Approximately two-thirds of all the native bird species (Kendall n/a) and one-fifth of the native plants (Kendall n/a) originally found on the Hawaiian Islands have gone extinct recently. Predators, competitors, or diseases introduced by humans from continental areas are responsible for many of the extinctions. Also, many remaining species on other oceanic islands are threatened or endangered. A benefit of cloning would be the cloning of endangered species that have difficulty reproducing in captivity (Kaku 227). Many of the animal species, and numerous plant species could be brought back to life with cloning. Even though there is currently no technique for bringing the plants back, with technology advancing so quickly, we could have a solution in the near future. Ultimately, cloning could have significant human applications.Cloning could help a couple unable to have children because one of them was infertile. In the case of an infertile father, scientists take an egg from the mother, remove its nucleus, then take a cell from the father, remove its nucleus, and place the nucleus inside the empty egg (Kolate 242). That cell acts as a reproductive cell. They then put the egg in the mothers' womb to impregnate her. Mark Sayer, an infertility expert at Columbia Presbyterian Medial Center in New York, would like to take each cell from an early human embryo and clone it, making identical twin embryos in the womans uterus immediately, and freeze any extras for future attempts at pregnancy (Kolate 242). The attempt would prove that the process of reprogramming a cells DNA begins with clones (Kolate 237).In the field of medicine, cloning can be a very useful technique. A major goal of scientists working on cloning is to clone genes that direct the production of medically significant uses in treating ...
