Phrase by 'John Gurdon'
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I remember that, at an early age, I spent many months making a three-masted sailing boat with rigging in a half-walnut shell.
Author: John Gurdon - English ScientistAge , Remember , Early , Boat
My first attempts to transplant nuclei in Xenopus were completely unsuccessful, because the Xenopus egg, unlike those of other amphibians, is surrounded by an extremely elastic membrane and jelly layer that make penetration by a micropipette impossible.
Author: John Gurdon - English ScientistFirst , Impossible , Surrounded , Egg
Within six months of starting my Ph.D. work in 1956, I had already obtained feeding tadpoles derived from transplanted nuclei of embryonic cells.
Author: John Gurdon - English ScientistWork , Cells , Within , Feeding
In principle. what is done is to take the nucleus out of a cell with a very fine micro-pipette or needle and introduce it into an egg. That had been done with amphibians a long time ago, and then there was a long pause of many years before people were clever enough to make that work in the sheep.
Author: John Gurdon - English ScientistPeople , Time , Work , Long
It's a very complex network of genes making products which go into the nucleus and turn on other genes. And, in fact, you find a continuing network of processes going on in a very complex way by which genes are subject to these continual adjustments, as you might say - the computer programmer deciding which genes ultimately will work.
Author: John Gurdon - English ScientistYou , Work , Will , Way
The first point to remember is that attempts to clone mice have actually been very unsuccessful for at least a decade. Sheep have been successful. So one asks, 'Where do humans lie?' Most people think they are somewhere between the two, but at least there's a reasonable chance they might be clone-able.
Author: John Gurdon - English ScientistLie , People , Remember , Chance
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