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目的对印度留学生前额发际的出现率和基因频率进行调查分析,为人类群体遗传学研究提供资料。方法前额发际突出三角尖(寡妇尖)为常染色体显性遗传(AD),前额发际平齐为常染色体隐性遗传(AR)。并记录观察结果。结果印度留学生前额发际三角尖表型频率为43.98%,该性状显性基因频率和隐性基因频率分别为0.2515和0.7485。结论印度民族前额发际的表型频率在性别间无显著差异;与中国汉民族及其他少数民族群体相比较,印度民族前额发际表型频率处于中等水平。
Objective To investigate the incidence and gene frequency of forehead hair in Indian students and provide information for the study of human population genetics. Methods The frontal hairline prominent triangular tip (widow tip) is autosomal dominant (AD), forehead hairline flush for autosomal recessive (AR). And record the observation. Results The phenotypic frequency of Indian triangular hairline was 43.98%. The dominant and recessive gene frequencies were 0.2515 and 0.7485 respectively. Conclusions The phenotypic frequency of Indian national forehead hairline has no significant difference between the sexes. Compared with Han Chinese and other minority groups, Indian national forehead hairline frequency is at a moderate level.