Chinanews, Beijing, Oct 18 – Chinese government has issued some guidelines to make sure that biological researches, especially those on transgenic biological products, are ethical and safe, said Li Xueyong, vice minister of science and technology, in a CPC 17th National Congress press conference held on Tuesday.In answering reporters' questions, Li said that China had a very clear stance on the development of stem cells and transgenic bilological products, that China would actively promote related researches and attach great importance to biosafety. At the same time, China would work hard to promote the industrialization of biological researches.However, these researches might sometimes involve ethical issues, an issue to which Chinese government has also attached great importance. On this question, Chinese government has already issued some guidelines to make sure that biological researches, especially those on transgenic biological products, are ethical and safe, Li noted.