OG12 21 求解答 偶又深深的陷进去了....

powers

21. Male bowerbirds construct elaborately decorated nests, or bowers. Basing their judgment on the fact that
different local populations of bowerbirds of the same species build bowers that exhibit different building and
decorative styles, researchers have concluded that the bowerbirds’ building styles are a culturally acquired,
rather than a genetically transmitted, trait.

Which of the following, if true, would most strengthen the conclusion drawn by the researchers?

(A) There are more common characteristics than there are differences among the bower-building styles of the
local bowerbird population that has been studied most extensively.
(B) Young male bowerbirds are inept at bower-building and apparently spend years watching their elders
before becoming accomplished in the local bower style.
(C) The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers
of most other species of bowerbird.
(D) Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently
seldom have contact with one another.
(E) It is well known that the song dialects of some songbirds are learned rather than transmitted genetically.

第一遍做是许久之前,做对了,今天第二次做,突然发现E好像更对

B是说从他们从小从他们的长辈那里学,那么,我就想既然是从自己族人身上学,那么肯定多少和基因搭上边,所以排除.
我不知道是自己扣字眼还是什么,我理解genetically transmitted,不是遗传,而是基因有关系的传播...那么从和自己有genetically related的人身上学也算是genetically transmitted吧...

而E完全和genetically transmitted没关系,他们可以学各种各地的方言...而且也明确说了不是genetically transmitted...而且语言能通,就代表有可能可以向其他各种鸟学习搭窝

唉,,又在钻进去了....大家轻拍

sdcar2010

Your understanding of genetically transmitted is flawed.

For example, based on your definition, since you are reading my comments to your questions and you are learning therefrom, and my genes are 99% identical with yours, then your gained knowledge is GENETICALLY TRANSMITTED.

powers

谢拉! 这样说确实很搞笑,

如果教和学的人都是99%的 genetically identical, 不怕你笑, 确实就是我一开始理解的genetically transmitted 类似家传秘籍一类的,绝不外传给 genetically not related的人.  

有时候不能带入题外的知识,有时候又不能不带,比如这题,假如完全假装不懂,完全凭字面意思,就很尴尬. 反而第一遍倒是做对了...

sdcar2010

Hehe. I just gave an extreme example.

Back to your question, "genetically transmitted" means passed on from parent to children through genes. It's hard coded at childbirth, not learned from the outside world after the birth.

In other words, "genetically transmitted" info or traits cannot be changed after birth.

powers

谢谢ls NN的解释啊.

刚刚Google了下"genetically transmitted", 100%的结果都是"genetically transmitted disease" 确实是hard coded的

btw, 新头像很hot!

RyokoS

谁帮我解释一下A啊，不懂为什么不对啊，谢啦~~~

scottli889

我是这样理解的，A说more common than differences. 还有可能是因为genetically transmitted，trait。因此这里不只是单独strength the "culturally acquired".

九段泡面高手

E 在说songbirds唱的歌是习得的，不是遗传的。想以此证明他们修nest也是习得的，不是遗传的。显然无法证明??

gmat新手22

我认为是 题干说：装饰巢穴是通过culturally 习得，而不是遗传的。支持题。

而E选项是说song dialect是通过culturally 习得，与装饰巢穴说的不是一个东西。