Cloning: The Era of Laboratory Cloning

Cloning: a small word of purpose. Cloning is the process of creating and generating a genetically identical copy of an organism. Cloning has many promising uses in medicine, industry, life protection and basic research. Cloning has proven to be technically difficult, but its effect is important when the process succeeds. Furthermore, genetic engineering is another word of cloning essential for research and life creation. Cloning is a controversial subject and genetic life is done at a very high ethical price to create or destroy genetic life.

Let's start with the history of the clone. The era of modern laboratory cloning began in 1958. At that time, FC Butler cloned carrot plants from mature single cells and put them in nutrient containing nutrient cultures. The first clone of animal cells occurred in 1964. John B. Gurdon took nuclear out of sputum and injected them into unfertilized eggs. The nucleus containing the parental genetic information of the original parent was destroyed by ultraviolet rays. When the eggs hatched, Gurdon discovered that only 1% to 2% of eggs grew into fertile adults. About 20 years later, mammals successfully cloned for the first time. Scientists in Switzerland and the United States succeeded in cloning the mouse using the same method as Gurdon, but it was a step. After removal of nucleus from embryos of a certain type of mouse, they were transferred to another embryo of the surrogate mother mouse.

Extinction cloning mainly focuses on the use of SCNT. SCNT needs to transfer the nucleus (from another animal's egg cell and removing its own nucleus) to the cytoplasm of donor eggs enucleated from the somatic (body) cells of the animal. Egg cells are stimulated in the laboratory to initiate cell division and embryos are formed. The embryo is then transplanted into the uterus of the surrogate mother, which in the case of extinction is a species closely related to the cloned species. In order to revive the extinct Pyrenees goats in 2009, researchers transferred cores from thawed fibroblasts of cryopreserved skin specimens to domestic goat 's enucleated eggs. Embryo transplanted into female of Spain ibex or hybrid (Spain ibex x domestic goat)