The researchers said this is a way of getting more specific genetic material into an egg than the method used on Dolly.

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It can be caused by a number of factors, including a rapid increase in the frequency of training, sudden increase in the intensity of training, transition from one training method to another, genetic abnormalities of the knee joint and poor base strength of the quadriceps.

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And the group used a problematic method for searching for particular organisms in the mess of genetic material they sequenced.

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Although the tried-and-true method of hybridisation is just another type of genetic modification, the public seem to think that it is normal.

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So while any baby born through this method would have genetic elements from three people, the nuclear DNA that influences appearance and other characteristics would not come from the woman providing the donor egg.

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One common method was to cover small gold particles with genetic material and shoot them into the nucleus of the plant cell with a pressure gun.

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