Failed monkey tests show human cloning may be impossible

IT may be impossible to clone humans because primate cells do not divide properly, a “pothole in the process” that creates chromosomes too abnormal for a pregnancy to begin, scientists have said.

The findings by the University of Pittsburgh researchers come five months after a cult group claimed to have cloned a human. Those claims have not been verified.

The scientists, reporting in the journal Science, attempted to discover why efforts to clone a monkey had been unsuccessful. They found that, from the very start, the cloned primate cells did not divide properly. Humans are primates.