SCIE 1P51 Lecture Notes - Lecture 9: Somatic Cell Nuclear Transfer, Hans Driesch, Hans Spemann
16 Feb 2016
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Science 1p51 lecture nine february 1st, 2016. Isolated sea urchin embryo cells would grow to identical sea urchins. Pulled the cells apart when they got to 8 or 16 cells and they. Would pull apart salamander embryo and create identical. Developed technique to separate the cells offspring. If you make the cells cold and don"t feed them when you pull them apart there is less damage. Taking an embryo pulling it apart and coming up with twins. Make copies of cells to establish cells lines. Used to make human tissues skin, heart, bone, cartilage. Egg zapped (tiny bit of electric shock); this cues certain proteins. Embryo replanted to come on and gene sequences to be used. History of cloning embryo, added to the frog egg did not develop. 1952 briggs and king extracted nucleus from advanced frog. The word clone derived from the greek klon meaning twig or. 1981 illmensee and hoppe claimed to have produced 3 exact.
