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近年些来,遗传学领域的进一步被开发、被利用、以及发展之神速是令人欣慰的。特别是最近的三十年来,我国学者徐道觉以及肖和列文(Tjio and Levan)利用周边血细胞的培养技术,以及加入植物凝血素、秋水仙素、低渗溶液等新方法,制成很清晰的染色体玻片,证明人类的准确的染色体数目是46(男性46xy、女性46xx),而不是以前所认为的46。随着生产实践和科学技术的不断发展,人类对遗传的认识越来越深刻,现代遗传学的发展,已能从分子水平上认识遗传的实质。1953年,华特生(watson)克里克(Criok)发现了DNA结构,并成为分子遗传学的奠基人。六十年代初,又弄
In recent years, it has been gratifying to see the further development, utilization and rapid development of genetics. Especially in the recent three decades, Chinese scholars Xu Daojue and Tjio and Levan made use of the culture of peripheral blood cells, as well as adding new methods such as phytohemagglutinin, colchicine and hypotonic solution to make a very clear The chromosomal slide shows that the exact number of chromosomes in humans is 46 (male 46xy, female 46xx) rather than 46 previously thought. With the continuous development of production practice and science and technology, human beings have become more and more profound in their understanding of genetics. The development of modern genetics has been able to understand the essence of inheritance at the molecular level. In 1953, Watson Criok discovered the DNA structure and became the founder of molecular genetics. Early sixties, get it again