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Biology - AQA GCSE

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Pregunta:

Give 2 common examples of cloning in animals?

Autor: Miqdaam Hamed Hassan



Respuesta:

Embryo transplants: 1)Sperm taken from bull with desired characteristic (milk yield) 2)Zygotes develop into embryos then removed from uterus 3)Embryos split to form more calf 4)Identical embryos transplanted into mothers Adult cell cloning: 1)The nucleus is removed from an unfertilised egg cell. 2)The nucleus from an adult body cell, such as a skin cell, is inserted into the egg cell. 3)An electric shock stimulates the egg cell to divide to form an embryo. 4)These embryo cells contain the same genetic information as the adult skin cell. 5)When the embryo has developed into a ball of cells, it is inserted into the womb of an adult female to continue its development.


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