综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

  .contact us |.about us
News > Lifestyle News ...
Search:
    Advertisement
Sexual identity rooted in genes
( 2003-10-23 14:30) (Shanghai Star)

Sexual identity is wired into the genes, which discounts the concept that homosexuality and transgender sexuality are a choice, according to a group of California researchers.

"Our findings may help answer an important question - why do we feel male or female?" Dr Eric Vilain, a genetics professor at the University of California, Los Angeles School of Medicine, said last Monday.

"Sexual identity is rooted in every person's biology before birth and springs from a variation in our individual genome."

His team has identified 54 genes in mice that may explain why male and female brains look and function differently.

Since the 1970s, scientists have believed that estrogen and testosterone were wholly responsible for sexually organizing the brain. Recent evidence, however, indicates that hormones cannot explain everything about sexuality.

The discovery may also offer physicians an improved tool for gender assignment of babies born with ambiguous genitalia.

 
Close  
   
  Today's Top News   Top Lifestyle News
   
+Building dreams in metropolis
( 2003-10-23)
+Grain prices surge - first time in six years
( 2003-10-22)
+Alerts issued on overheated sectors
( 2003-10-22)
+Joint naval operation held off east coast
( 2003-10-22)
+Communal elections sprout up in cities
( 2003-10-23)
+Sexual identity rooted in genes
( 2003-10-23)
+A Singapore woman jailed for assaults against maid
( 2003-10-23)
+German team finds secret of mummies' preservation
( 2003-10-23)
+Two arrested over sky diver murder
( 2003-10-23)
+More workers not insured at large US companies
( 2003-10-23)
   
  Go to Another Section  
     
 
 
     
  Article Tools  
     
   
     
   
        .contact us |.about us
  Copyright By chinadaily.com.cn. All rights reserved  

<form id="hbni7"></form>

  • <dfn id="hbni7"><ul id="hbni7"></ul></dfn>

    东阳市| 光泽县| 白山市| 石楼县| 绩溪县| 资阳市| 会昌县| 明光市| 交口县| 浦江县| 调兵山市| 大港区| 宁化县| 开化县| 新建县| 库尔勒市| 巴彦县| 凤庆县| 西平县| 黑水县| 五大连池市| 汾西县| 台江县| 抚松县| 西峡县| 抚顺市| 南阳市| 永城市| 毕节市| 寿光市| 寻乌县| 桃源县| 万载县| 威远县| 城固县| 阿鲁科尔沁旗| 来安县| 杂多县| 启东市| 永嘉县| 鄂尔多斯市|