【摘要】 克隆动物是目前生物技术领域研究的热点之一，其科学意义和应用价值重大。本文简述了当前国内外克隆动物的研究进展，讨论了影响动物克隆的技术环节，并根据现有理论和技术发展趋势，提出了转基因克隆动物的概念，认为转基因克隆动物制作技术将是２１世纪创建遗传工程动物的主导性技术。更多还原

【Abstract】 Animal cloning,with its great value in life science and animal industry,is oneof the most important research fields in current biotechnology. The authors here briefly reviewed the research advances in animal cloning and discussed technical factors involved incloning process in detail,suggesting that the creation of transgenic & cloned animals (TC Animals)would be a dominant way to produce and propagate genetically engineered animals inthe coming century.更多还原