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上海市儿童医院医学遗传研究室在国内首次应用 Y 特异 DNA 探针于妊娠早期(8～10周)鉴定胎儿性别获得成功,这项成果已于9月21日在沪通过鉴定.与会专家一致认为这一成果的取得标志着我国胎儿性别的研究已由细胞学水平进入分子水平,并达到了国际先进水平.该项成果对于 X-性连锁遗传病的产前诊断具有重要价值.1984年,国外用重全 DNA 技术从男性 Y 染色体异染色质区重复顺序上克隆制备了一种男性特异 DNA
Shanghai Children’s Hospital Medical Genetics Laboratory in the country for the first time using Y-specific DNA probes in early pregnancy (8 to 10 weeks) to identify the success of fetal sex, the results have been identified in Shanghai on September 21 in Shanghai. Experts agreed that The achievement of this achievement indicates that the research on fetal sex in our country has entered the molecular level from the cytology level and reached the international advanced level.This result has important value for the prenatal diagnosis of X-linked genetic disease.In 1984, A DNA sequence of male-specific DNA was cloned from the repetitive sequence of heterochromatic region of male Y chromosome