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>

    鄂尔多斯市| 红安县| 沙田区| 新余市| 佛学| 青铜峡市| 台东县| 西峡县| 荥经县| 天台县| 肥东县| 梅州市| 博爱县| 天峨县| 略阳县| 韶山市| 新兴县| 清新县| 虞城县| 东至县| 油尖旺区| 临夏市| 寿阳县| 略阳县| 洪洞县| 集贤县| 宝清县| 钟山县| 连云港市| 岢岚县| 乐平市| 绥德县| 遂昌县| 黎平县| 天津市| 固原市| 湛江市| 鄱阳县| 延长县| 福安市| 西畴县|