{"title":"苯硫代氨基脲的味觉能力研究约翰内斯堡中国学童的红绿色盲与月经初潮年龄。","authors":"H de Villiers","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The sample, although small, represents the total number of children attending the Johannesburg Chinese Kuo Ting Primary and High School in 1972 to 1974. The frequency of the non-taster gene was found to be 0,167 in the combined male and female sample. The gene for red-green colour blindness is present in the Johannesburg Chinese population but at low frequnecy, 0,012. The mean age at menarche was found to be 12,8+/-1,23 years and is younger than the mean ages recorded for a number of Caucasoid populations. It is suggested that this difference in mean age reflects possibly varying genetic rather than varying socio-economic factors.</p>","PeriodicalId":22995,"journal":{"name":"The South African journal of medical sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Studies on the ability to taste phenylthiocarbamide; red-green colour blindness and the age at menarche in Johannesburg Chinese school children.\",\"authors\":\"H de Villiers\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The sample, although small, represents the total number of children attending the Johannesburg Chinese Kuo Ting Primary and High School in 1972 to 1974. The frequency of the non-taster gene was found to be 0,167 in the combined male and female sample. The gene for red-green colour blindness is present in the Johannesburg Chinese population but at low frequnecy, 0,012. The mean age at menarche was found to be 12,8+/-1,23 years and is younger than the mean ages recorded for a number of Caucasoid populations. It is suggested that this difference in mean age reflects possibly varying genetic rather than varying socio-economic factors.</p>\",\"PeriodicalId\":22995,\"journal\":{\"name\":\"The South African journal of medical sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1976-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The South African journal of medical sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The South African journal of medical sciences","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Studies on the ability to taste phenylthiocarbamide; red-green colour blindness and the age at menarche in Johannesburg Chinese school children.
The sample, although small, represents the total number of children attending the Johannesburg Chinese Kuo Ting Primary and High School in 1972 to 1974. The frequency of the non-taster gene was found to be 0,167 in the combined male and female sample. The gene for red-green colour blindness is present in the Johannesburg Chinese population but at low frequnecy, 0,012. The mean age at menarche was found to be 12,8+/-1,23 years and is younger than the mean ages recorded for a number of Caucasoid populations. It is suggested that this difference in mean age reflects possibly varying genetic rather than varying socio-economic factors.