How Cloning Is Done
An introduction to the cloning procedure.
Guys, just imagine a girl named JASMINE dancing in the disco floor and writing an exam in the school at the same time.
Or, you feel like sleeping some more till 10:30 am. But you are attending the school prayer at the same time.
Wouldn’t it be wonderful if this could really happen? Perhaps that day is not far away with the phenomenon of cloning.
A clone is a exact carbon copy or copies of a single parent – starting off as a single cell in a mother’s womb and then dividing into two to develop into separate bodies of the same genetic characters.
Nowadays scientists are making clones of a single parent having same genetic character.
The most famous clones of the world are:-
1)Dolly ,a sheep who was produced from a single udder cell of her mother
2)Eve,a human baby girl ,born on Thursday December 26,2002, produced from the single cell of her mother
In both cases, no role was played by the father as no sperm was required.
How was Dolly, the Sheep cloned?
Lan Wilmut, with his associates at the Roslind Research Institute in Scotland, collected udder cells from a sheep mother cell. They managed to store these cells in the nutrient-deprived culture medium. The starved cells did not divide and switch off their active genes.
One udder cell was selected with its complete nucleus and the complete genetic information of the mother. Meanwhile, an unfertilized egg cell was taken from another sheep.Its nucleus was sucked out of leaving an empty cell containing all the necessary components to produce an embryo.
Now the nucleus of the udder cell was fused into the egg cell without the nucleus. This unfertilized egg cell with somatic or diploid nucleus was then implanted in the surrogate mother where DOLLY grew and which gave birth to her. This Dolly was identical to the mother whose udder cell was selected.
This technique is now used to clone cattle and sheep for the benefit of mankind. In animal work, so far only about 1 to 5 percent of cloning attempts has succeeded, according to Randall Prether, a cloning expert.
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