性取向真的是由基因决定的吗

 youguanshuangxinglianshitianshengyouyichuanjiyinjuecedehuanshihoutianxinghuanjingweihaichanshengde，zheizhongjiaofashizhongshenshouyiyi，xingquxiangjianzhiyouyichuanjiyinjuecedema?youguanzheiyijichulilun，huazhenxiaojiejieweidahuoerjiansuolemouxiecailiao：

性取向 是由遗传基因决策的吗?

 xingquxiangshi1gefanzadenanti，gezhonggeyangxingquxiangbingwuhaohuaizhifen。youguanxingquxiangdezaochengyouhenduozhongduoyangjichulilun，xianrujindabufenshengwuxuejia、shehuixuejia、yishengzhuanjiajuedexingquxiangshitianshengjuecede，meifagenjuhoutianxinggenggai，bingbushizheizhongtiaoxuan，yebingbushizishennenggoucaozongde。huanjuhuashuo，guanjiandeshiliyinglejiedaoxingquxiangshiyinrenyousuobutongdede。

 shangxinshiji90shidaiyingguoyichuanxuejiadien·hamo(dean hamer)chucimingquetichubingzaochengquanshijieguanxinde“tongxinglianjiyin”jichulilun，jinqibeizheixiangxinkexueyanjiuqueren。meiguotongzhixinwenmeitiqueertybaodao，hamozai1993nian7yuefabudediaochabaogaozhongchengrenmenxingquxiangshouyichuanjiyinweihai，tajuedegaiyichuanjiyinzuoluoyuxxingransetishang，youmamajiyinyichuan。

 hamodekexueyanjiuwei“shuangxinglianbingbushihoutianxingtiaoxuan”chushilelilunyiyi，dan20nianyilaibiedemouxiekexueyanjiucengsuanchuxiangfenqidejieguo，cushiyuzhongchenggulanjinghekongtongderenyuanduihamodekexueyanjiujiyufourenhuofengci。

 dangyue5ri，《niuyueshibao》baodaodezheixiangxinkexueyanjiufajuehamoshiduide，dequecunyou“tongxinglianjiyin”，bingqieneiyangdeyichuanjiyinyou2ge，naizhidaliang。

（xingquxiangqueshiyouyichuanjiyinjuecedema？）

 renleijiyinzufangandekexueyanjiugongzuorenyuanduiduogeshuangxingliandixiongkaizhankexueyanjiu，canjiakexueyanjiudemeiguoxibeidaxuexuejiamaikeer·beili(michael bailey)shuo：“xingxiangyuhoutianxingtiaoxuanmeiyouguanlian。renmendekexueyanjiushuomingxingxiangjianghuishouyichuanjiyincaozong，renmenzaoyiyouzhijiezhengjunenggouzhengshi，you2zuyichuanjiyinhuiweihainanshidexingquxiang。”

 kexueyanjiugongzuorenyuantiqule409duishuangxingliandixiongyijiyixinglianqinshudexueye，pouxiquedingxxingransetishangdemouyidiqudequeduixingquxiangyouweihai，yequedingle8haoxingransetishangmouxiednahuiweihainanshidexingshenghuo。

 beilishuo：“yichuanjiyindegongxiaobuchedishigenbenxingde，haowuyiwenyeyoumouxiehuanjingyaosu。”faguoshenjingkexuequanweizhuanjiadike·siwabu(dick f. swaab)cengzaixinxiaoshuozhongqiangdiao，nvshizaihuaiyunqidegerenxingweihuosuozaiziranhuanjing，duixiaohaixiantianxingshishuangxinglianhuotongxinglianzhedegailvyoubixuweihai。

 fajue“tongxinglianjiyin”bingbuyiweizhebabamamanenggouduodiaoshuangxingliantaibaobao。xianjieduanmeiyou“tongxinglianjiyin”wusunjiancejishu，yexuzhongjiudouburongyiyou。beilishuo：“suiranweilaijianghuiyounanshitaibaobaodexingxiangjianyan，danzheileijianyanburongyihenjingque，youyuxuduoyaosudoushiweihaijianyanjieguo。”

 lundunguowangxueyuanshehuixuejiakaji·laman(qazi rhaman)gaozhimeiguo《meiridianxunbao》，yichuanjiyinduirenmenxingquxiangdejueceshuipingyuewei40%，weilaijianghuihuifajuedaliangweihaixingxiangdeyichuanjiyin，zheihuidadazengjiataibaobaoxingxiangjianyandenanduxishu。

 xingquxiang(sexual orientation)tongchengxingxiang，biechengxingquxiang、xingpianxiang、xingweixiang、xingdingxiangdeng，tajiushizhi1gerendaoganqing、lanman、yuxingshangduinanshihuonvshiyounazhongtexingdenaijiuduxiyinzhu。

 xingquxiangyoufenchengyixinglian、shuangxinglian、wuxinglianjiqiqitaxingquxiang，xingquxiangshibushiqueshiyouyichuanjiyinjuece，zaoyiyongyoumouxiekexueyanjiuzhengshi，danshihoutianxingdegongxiaoshibushiyeshicunyou、weihaiyouyouduoshao，zheiyihaibixushenhuadekexueyanjiu。