Augix’ Blog

• 曾经最掏心所以最开心 2011-03-14 02:10:29
• 不骄不躁，厚积薄发。 2011-03-18 22:12:51
• it would be great if you’re also into it. 2011-03-19 22:38:55
• If one can’t get the thing one desires, everything else become meaningless for him/her. That’s why one might see the world as uninteresting. 2011-03-19 22:42:19
• 我觉得西方人比较独立，但是中国人更重感情。（这个观点不一定客观） 2011-03-20 08:37:41
• 热衷于发现人与人之间的共同点的人，也许更喜欢合作，而非竞争。 2011-03-20 09:05:17
• 突然听到《往事只能回味》，在东西方文化的纠缠之中找回了点东方的温情 2011-03-20 09:11:01
• 我只是个学生，我还有很多要学。 2011-03-21 05:50:01
• 做一个谦虚的学生，也许低调做人，能让周围的人心情舒畅。 2011-03-21 07:57:06
• What is the meaning of existence? Why we are here? The answer, of course, is: “video games!” — An ad. in AOL online radio 2011-03-25 21:40:24
• While teaching whatever you wanna teach the kids, you should also tell them to question the correctness of what they’ve taught. 2011-03-25 21:47:49
• Everyone has his/her own understanding about meaning of life, therefore one can live in his/her own way. But I think it’s all about fitness. 2011-03-25 23:15:17

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Many people know that human males don’t have spine in their penises. But most people don’t know that males in Chimpanzees and other mammals have penile spine. Now scientists from Stanford University discovered a stretch of DNA shared in mammals but not in humans that can explain the lost of human penile spine. Their paper is published today in Nature.

The DNA stretch covered an enhancer near a gene encoding Androgen receptor, androgen is one of the most important hormones that induces the development of our sexualities. Moreover, other studies have proved that the development of penile spine is androgen dependent. Therefore, this team of Standford scientists investigated the function of this enhancer by putting it in the mouse embryo with a reporter gene. They found that this piece of DNA governs the expression of reporter gene in two regions of mouse embryo: facial vibrissae and genital tubercle. With this result, they speculated that humans lost facial vibrissae and penile spine because of the deletion of this very piece of DNA.

In the end, the authors also speculated that the lost of spine decreases the tactile sensitivity of penis and increase the duration of sexual intercourse in humans, which strengthen the pair-bonding and parental care, which in turn increase the evolutionary success of our species.

Reference:
Human-specific loss of regulatory DNA and the evolution of human-specific traits

• Science is not an accident, it is logical reasoning and systematic analysis. 2011-02-18 18:19:51
  




• Is there a gene that ensures the success of passing itself to next generation while not necessarily increase its frequency? 2011-02-18 18:37:10
  




• Through cooperation, different individuals live happily with each other, passing all of their genetic information to the next generation. 2011-02-18 18:39:53
  




• 我不生气，不因为被不礼貌对待而生气，生气对谁都不好。 2011-02-19 23:00:51
  




• 也许中国社会中复杂的等级制度是长久以来制约科学发展的一个因素，在西方，（至少目前）人与人之间的关系要平等得多，一个学生完全可以指出一个名教授的错误，这是科学所需要的批判和反思精神。 2011-02-23 18:14:04
  




• 当你有一个值得你努力追求的目标，你的生活会变得充实。 2011-02-23 21:03:38
  




• Should we be allowed to say what we wanna say even it’s wrong and stupid, even it will make people uncomfortable, make us been dislike? 2011-02-27 03:09:07
  




• 学《论语》做Chinese Gentleman 2011-02-27 22:35:49
  




• 去伦敦和剑桥玩了一周，对英国人印象非常好。 2011-03-07 18:15:48
  




• human-specific deletion这篇文章让我意识到自己在思考科学问题的时候要放开思路，让自己大胆地去想突破口，不应该只局限于自己当时当地能做的课题。只要敢想，我也可以想得到从人类特意的DNA片段丢失入手。人总是容易被当时的环境所局限。 2011-03-09 04:45:14
  




• 如果把人看作一个黑盒子，往里面输入正面情绪，会返回怎样的情绪？对一个人友好，微笑，那么他/她会怎么回应？ 2011-03-09 05:04:33
  



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• for sure, there are still a lot of “super” abilities that humans can gain through evolution or genetic engineering. 2011-01-21 04:08:27
  




• 同学的导师把他不要的家具开车送到我家，帮我搬上楼，这就是东西方差异，在西方人跟人像朋友一样平等。 2011-01-23 00:36:53
  




• Gene regulatory networks not only explain how biology works, but also help understanding why biology works in the way it does. 2011-01-25 04:18:23
  




• What is a system (a cell, an organism) made of? How is it made? Why is it made this way? Questions keep in my mind while learning. 2011-01-26 00:33:00
  




• 我们中国人在外面立足，还是要靠努力工作，比本地人多发文章才能找到工作。 －某位师兄 2011-01-27 21:13:21
  




• people grew up with more positive feedback tend to be more confident, they also regard the world and people with more positive attitude. 2011-01-29 01:11:48
  




• 一辈子太短，想怎么活就尽情那么活，别犹犹豫豫，闲这闲那！ 2011-02-01 05:01:38
  




• 新年快乐，祝愿祖国更强大，人民更幸福！ 2011-02-02 22:08:17
  




• Berlin, I’m coming 2011-02-11 06:29:23
  




• Berlin sucks 2011-02-15 00:18:15
  




• 如果老外问我去哪个城市感受中国的文化，我会推荐文化中心北京。我也会推荐南京和杭州。当然还有很多城市都有各自的特色。对于故乡杭州，我很希望看到她保存好文化遗产，并且继续发展光大。 2011-02-16 17:06:16
  



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• a hen is only an egg’s way of making another egg. — english novelist samuel butler 2011-01-05 05:03:57
• moved to mehmet’s former office, having less distractions, great! 2011-01-05 22:04:54
• 我要加油，为了生我养我的父母，为了因我而骄傲的弟弟，为了关心支持我的朋友，我要给你们带去快乐幸福！ 2011-01-06 02:47:27
• mutations made different ways of living (biodiversity), but how do we describe these novel biological activities by biochemical reactions? 2011-01-11 00:28:21
• so what is possible, what is not possible? (novel features created by mutations) 2011-01-11 00:29:04
• macbook air到手，摒弃传统硬盘，解决重量速度散热噪音一系列问题 2011-01-12 22:05:34
• macbook air到手，太冷，太安静了 2011-01-12 22:15:15
• Evo-devo — it might sound like the name of a rock band. 2011-01-17 04:47:36
• Our cleaning man looks like Mario. 2011-01-18 00:13:48
• 祖国的强大是我们自信的源泉，太喜欢这种感觉了！ 2011-01-18 23:54:49
• 其实我在中学里学的很多东西都记不起来了，当时是为了考试而学习，并不是为了更深地去理解这个世界而学习，也不是为了帮助别人，启发别人而学习。 2011-01-19 07:15:06
• 杭州拥有舒适的自然环境和温馨的人文关怀，北京上海比不上。 2011-01-19 22:13:32

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