Which animals cloned

Honouring Exemplary Boards. Deep Dive Into Cryptocurrency. ET Markets Conclave — Cryptocurrency. Reshape Tomorrow Tomorrow is different. Let's reshape it today. Corning Gorilla Glass TougherTogether. ET India Inc. ET Engage. ET Secure IT. Auto Auto News. The world's first cloned piglets were produced by PPL Therapeutics from an adult sow using a slightly different technique from the one that produced Dolly.

Mooving on A pair of new-born cloned calves in a cowshed in Ishikawa Japan, on July 5 They were born exactly two years after Dolly, the British sheep that made history by becoming the first clone of an adult animal. They are the second adult-animal clones, and were produced by a similar technique. A spokesman for the Ishikawa prefectural livestock research centre said the new technique would be used to breed better cattle strains with higher-quality beef or greater milk capacity.

The birth of ANDi, the first rhesus monkey cloned by embryo splitting, is another incremental step toward designing and perfecting new treatments for human genetic disorders. Severino Antinori Italian fertility specialist Severino Antinori speaks at a conference on human cloning in Rome on March 9 The Italian medical authorities warned that Dr Antinori risked losing his right to practise in Italy because of his plans to clone human beings. Because she was the first mammal to be cloned from an adult cell, rather than an embryo.

This was a major scientific achievement, but also raised ethical concerns. Since , when Dolly was born, other sheep have been cloned from adult cells, as have mice, rabbits, horses and donkeys, pigs, goats and cattle. In a mouse was cloned using a nucleus from an olfactory neuron, showing that the donor nucleus can come from a tissue of the body that does not normally divide. Producing an animal clone from an adult cell is obviously much more complex and difficult than growing a plant from a cutting.

So when scientists working at the Roslin Institute in Scotland produced Dolly, the only lamb born from attempts, it was a major news story around the world. To produce Dolly, the scientists used the nucleus of an udder cell from a six-year-old Finn Dorset white sheep. The nucleus contains nearly all the cell's genes. Then they injected the cell into an unfertilised egg cell which had had its nucleus removed, and made the cells fuse by using electrical pulses. The unfertilised egg cell came from a Scottish Blackface ewe.

When the scientists had managed to fuse the nucleus from the adult white sheep cell with the egg cell from the black-faced sheep, they needed to make sure that the resulting cell would develop into an embryo. They cultured it for six or seven days to see if it divided and developed normally, before implanting it into a surrogate mother, another Scottish Blackface ewe.

Dolly had a white face. From cell fusions, 29 early embryos developed and were implanted into 13 surrogate mothers. But only one pregnancy went to full term, and the 6. The main reason that the scientists at Roslin wanted to be able to clone sheep and other large animals was connected with their research aimed at producing medicines in the milk of such animals.

Researchers have managed to transfer human genes that produce useful proteins into sheep and cows, so that they can produce, for instance, the blood clotting agent factor IX to treat haemophilia or alphaantitrypsin to treat cystic fibrosis and other lung conditions. Cloned animals could also be developed that would produce human antibodies against infectious diseases and even cancers. Meet the people trying to help. Animals Whales eat three times more than previously thought. Environment Planet Possible India bets its energy future on solar—in ways both small and big.

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