【调侃】分子遗传学证明韩寒没有代笔 ---- 作者:iaad

我一直比较欣赏韩寒的,但是方寒大战已经五个月了,闹得沸沸扬扬的,这段时间我一直为一些问题所困惑,甚至曾经动摇过。今天带着这些问题,拜访了研究遗传学,人类进化及行为学的麦克尠腧门(Mike Er Trueman)博士。和杜鲁门博士一个多小时的交谈,很多问题得到了解答,一下子豁然开朗了很多。

杜鲁门博士很多年前就已经在研究人类进化以及行为学方面做了很多有意义的工作。但是最近这些年的研究因为涉及到人类的进化和智商,在西方社会这个可以说是“政治上不正确”的。在西方社会,你可以自嘲自己比别人笨,你也自负说你自己很聪明,但是你不能说某些人群比另外一些人群智商高或者低。比如曾经的诺贝尔奖得主,DNA结构发现者詹姆斯尠威茠森(James Dewey Watson)曾经发表过黑人智商不如白人的言论(http://zh.wikipedia.org/wiki/%E8%A9%...B2%83%E6%A3%AE),招惹了很多麻烦。虽然他在科学领域的地位很高,但是仍然受到西方媒体和民众的诟病,并被解除了美国冷泉港实验室的职位---尽管他的言论可能并不是错误的。

事实上,世界上不同地区和民族的智商确实是不一样的,可参考维基百科上的数据(http://zh.wikipedia.org/wiki/%E6%99%BA%E5%95%86)。数据显示东亚国家人的平均智商是最高的(>105),而一些非洲国家人的平均智商则相对较低(<65)。由于这方面的原因,杜鲁门博士最近这些年的东西都不容易公开发表。但是因为他在这些领域桃李满天下,科研经费倒也一直有。加上他又是大学的全职教授不用担心失业问题,倒也优哉游哉一直做自己感兴趣的工作。

方寒大战在国内闹得很热闹,西方媒体虽然也蜻蜓点水地报道了一些,但是多数美国民众对这些是一点也不了解的,我不得不把事情的来龙去脉给杜鲁门博士详细叙述了一遍,并表达了我的困惑,比如无法理解为什么一个天才少年在大众面前经常语无伦次等问题。杜鲁门博士听我叙述完,谨慎地表达了自己的想法,他认为这可能是因为韩寒遗传了比较好的基因,并详细介绍了一些知识给我。

在人类第25对染色体上有一段DNA,叫Super Human Associated MasterExpression (SHAME) Operon,可以翻译为超常人类相关主表达操纵子。这是个比较拗口的术语,简单来说这段序列是由Mony, Gal, Kar, Hite, 和Med五个基因首尾相连构成的(如下图所示)。在这段序列前面有一段短的DNA序列,是称为Tan box的启动子,当细胞中的另外一种叫RNJ的蛋白质达到一定量的时候,可以特异性结合到Tan box上,启动下面五个基因的同时表达。目前为止,这五个基因的表达产物的功能还没有完全研究清楚,但是已有数据表明这些基因和人的智商,运动能力,激素水平,蛋白质表达,骨骼生长,对异性的吸引能力,以及社会活动能力都有直接或者间接的影响。有意思的是这些基因只在人类身上发现,在其他哺乳动物以及其他生物里都没有找到。这也为研究这些基因的起源和进化造成了很大的障碍,因为一般来说人类的基因往往能够在低等生物甚至细菌里找到同源或者同功能基因的。有一种假说是这些基因是从某种已经灭绝的生物横向遗传到人类祖先的。这种横向的基因漂移并不是不可能的。现在反对转基因生物的人有一方面就是担心转的基因会横向漂移到其他物种,造成环境污染。甚至有宗教人士认为,SHAME基因是上帝创造人类的点睛之笔。

但是,人类很多族群这个基因发生了很大的变异,这些基因的突变都不是致命的,所以这些变异能够遗传下来。当一个或者多个相关基因失去功能的时候就引起了各个方面的变化,比如智商的差异,身高的变化。即使是我们普通大众,很多人也没有办法完美表达这些基因。“上帝给我们开了个玩笑,就像他不想让我们吃智慧树上的果子一样。”杜鲁门博士无奈得说,“但是,如果有些族群保持了这些基因,并能够正常表达,这些族群就会有高于常人的智商,这就是大家所说的天生的天才。” 即使一个人拥有这些基因,也不一定能够一生中一直表达,博士后来又介绍说,我们目前对这些基因的了解还非常有限,只知道环境因素会影响基因的表达,可能和年龄,饮食,家庭教育,甚至主观情绪有关。

当我表示无法理解为什么一个天才少年在大众面前经常语无伦次的时候。杜鲁门博士说一个可能的解释是,已经发现这些基因表达的蛋白半衰期都很短,并且受环境影响很大。很大的可能是,在大庭广众之下,在语言和灯光等的刺激下,这些基因的表达可以被快速关闭,体内这些蛋白会很快被分解掉,造成人的紧张,语无伦次,而不像写作时表现出的智慧。就像一些人,像电影国王的演讲里一样,一个人的时候很好,但是一旦在公众面前就会口吃,很可能也和这些基因有关。

和博士的交谈学习了很多东西,都是分子遗传学领域最新的进展。在这里,我们不能不说说方寒大战里另外一个主人公方舟子了。方舟子九十年代初到美国留学,博士毕业不久以后就离开了科研第一线。当方舟子离开实验台的时候,人类基因组草图还没有完成。如果说方舟子是一个生物科学家的话,也只能说是个老科学家了。大家还记得围城里面讲的老科学家的故事吧,关键是老科学。可以说在这个科技日新月异的时代,方舟子的知识已经落伍了。他甚至都没有听说过上文我们提到的这些知识,怎么能够理解韩寒的天才创造和生长模式呢。作为韩寒的粉丝,我们不需要自卑。让我们学好科学知识,武装起来。让方舟子们在科学和真理面前颤抖吧。

原载:mitbbs.com WaterWorld版,文章连接:http://bbs.comefromchina.com/forum140/thread1105599.html

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全现今世界..中国所有作家都不会制作四两拔干片..更不会白纸成书..而韩憨独家出炉..瓦釜雷鸣..说明中国伦理大倒退..已到了何等地步 !

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H1:每个字分开是看得懂的,怎么合在一起就不懂了呢
H2:爸呀,这个字念啥……
H1:龟儿子!!!!!!!

访客的头像

见过埋汰韩二的,但也没见过这么埋汰韩二的。韩一和韩二加起来也看不懂这篇文章的半行。

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史载 : 南朝人士刘邕 , 爱吃疮痂 , 认为伤口或疮口愈合后结成的硬皮 , 味道鲜美 , 堪比鲍鱼

韩二 ------ 彻头彻尾令人恶心的文坛疮痂

力图证明韩二没有代笔的所谓博士门徒 , 仿佛刘邕再世 , 重现性嗜疮痂之肮脏一幕

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