A former colleague of embattled South Korean scientist Hwang Woo-suk said today he has asked his university to widen its investigation into the stem cell researcher’s work, and to review earlier purported breakthroughs.

South Korean researcher Hwang Woo-suk stood by his purported breakthroughs in stem cell technology today despite accusations he falsified key evidence.

A doctor who provided human eggs for research by cloning pioneer Hwang Woo-suk claimed today that the South Korean scientist admitted most of the stem cells he produced and documented in a journal article were faked, according to news reports.

THE academic world has been shaken over the admission of ethical lapses by the world’s leading cloning scientist.

South Korean cloning pioneer Hwang Woo-suk publicly apologised today for ethics lapses, admitting two female scientists in his lab donated their own eggs for research.