the sort of top stories of well we already g.m. crops and now g.m. salmon which grows faster and larger. you but does anyone really know what effect they might have at us and our environment well next our special report follows a few independent researchers of genetic engineering as they investigate the dangers of transgenic sound. at least lies are very interesting. and this this is an interesting slide with what you have here in one thousand nine hundred two dr ralph ben straight university of pennsylvania said what if i can take the gene responsible for growth in human beings and put it into a mouse. he did just that he actually was successful as you can see though the very large mouse here is the one this successfully been an engineer with human gene growth genes to make a huge and you see the sibling next to it and if this made a huge fear it was on the front page of these magazines new york times and then a few months later people said well this is interesting but what you can really do with a really huge amounts i mean you can scare people you

more news for innocence thirty minutes from now and meantime it's a special report on the effect g.m. crops and fish could have on humans and the environment. the purpose of this experiment is to determine if genetically engineered fish will outcompete and mate with wild fish and if they do that whether their genes will spread in a wild population or whether they will disappear over a number of generations and we're interested in that because that's one of the main questions about ecological wrists if genetically engineered fish are being produced in a fish farm and if they were to escape from the farm and if they were able to mate if they were fertile the question is they skate and if it is based taken to waters where there are wild relatives what will happen if they interbreed with the wild relatives and our experiment is designed to test that question. so this in a rico wooden building or as the university develops a computer model in which they created a population of sixty thousand wild creatures into which sixty transgenic individuals penetrate a council lot of questions was compiled