Презентация, доклад по английскому языку Clonning

asexual reproduction. The term "cloning" is often used in the same sense in relation to the cells of multicellular organisms. Cloning is also called the receipt of multiple identical copies of the genetic molecules.

surgically the famous sheep Dolly was a genetic copy of an adult sheep.To do this, from the cells of her udder was taken as the nucleus for transplantation into an egg of another sheep. After that, the egg with the replaced nucleus developed as fertilized.

embryos that were destroyed five days after the start of the experiment.Scientists used the method of somatic cell nucleus transfer, which was used in 1996 during cloning Dolly sheep. The point of this method consists in removing the nucleus of an egg donor and implementation of the kernel that contains information of DNA.

to human cloning. However, the lack of knowledge about the effects of reproductive cloning had led many States, including Russia, to prohibit human cloning at the legislative level.