Controversial work paves way for scientists to breed primates that are born with the genetic faults responsible for human conditions such as Parkinson's and motor neurone diseaseScientists have for the first time created genetically modified monkeys that can pass on the added genes to their offspring.The controversial work paves the way for scientists to breed large populations of primates that are born with the genetic faults responsible for incurable human conditions such as Parkinson's and motor neurone disease.Researchers hailed the feat as a major step towards understanding the development of inherited diseases from the cradle to the grave, but the work is likely to dismay animal rights groups as it could lead to a rise in the number of primates used in research labs.The work also raises the possibility of genetically modifying humans, although such work is outlawed in most countries, including Britain.In a proof of principle experiment, Erika Sasaki and her team at the Central Institute for Experimental