g******t 发帖数: 18158 | 1 paper在这里:
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.p
The Role of Inbreeding in the Extinction of a European Royal Dynasty
Gonzalo Alvarez mail, Francisco C. Ceballos, Celsa Quinteiro
Abstract
The kings of the Spanish Habsburg dynasty (1516–1700) frequently married
close relatives in such a way that uncle-niece, first cousins and other
consanguineous unions were prevalent in that dynasty. In the historical
literature, it has been suggested that inbreeding was a major cause
re... 阅读全帖 |
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c*****g 发帖数: 21627 | 2 http://en.wikipedia.org/wiki/Outbreeding_depression
A concept in selective breeding and zoology, outbreeding depression refers
to cases when offspring from crosses between individuals from different
populations have lower fitness than progeny from crosses between individuals
from the same population. (In selective breeding, the concept is opposed to
inbreeding depression). This phenomenon can occur in two ways.
First, selection in one population might produce a large body size, whereas
in anothe... 阅读全帖 |
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b********n 发帖数: 38600 | 3 达尔文一生鼓励杂交
" Charles Darwin, for one, was obsessed with inbreeding, and well he had
reason to be. For generations the Darwins had intermarried with the
Wedgwoods, and Charles was no exception. He married his first cousin, Emma
Wedgwood. Both were descended from the founder of the famed pottery dynasty,
Josiah Wedgwood, who had himself married his third cousin. Darwin, to his
credit, began to suspect that there were possible drawbacks to such
inbreeding when three of his ten children, frail and si... 阅读全帖 |
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l*****o 发帖数: 26631 | 4 Long-Term Health Risks and Benefits Associated with Spay / Neuter in Dogs
Laura J. Sanborn, M.S.
May 14, 2007
Precis
At some point, most of us with an interest in dogs will have to consider
whether or not to spay / neuter our pet. Tradition holds that the benefits
of doing so at an early age outweigh the risks. Often, tradition holds sway
in the decision-making process even after countervailing evidence has
accumulated.
Ms Sanborn has reviewed the veterinary medical literature in an exhaustive
a... 阅读全帖 |
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t******k 发帖数: 599 | 5
"Thus, it not surprising that during the early stages of mouse inbreeding,
many of the animals will be sickly or infertile. At the F2 to F8 generations
, the proportion of sterile mice is often so great that the earliest mouse
geneticists thought that inbreeding was a theoretical impossibility (Strong,
1978). Obviously they were wrong. But, to succeed, one must begin the
production of a new strain with a very large number of independent F1 X F1
lines followed by multiple branches at each follow... 阅读全帖 |
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M*****n 发帖数: 16729 | 6 Basically, inbreeding dramatically increases the frequency of homozygosity,
which is the cause of lots of recessive genetic disorders in human being.
eg. regarding allele a, the ratio of homozygotes (aa) among the progenies of a
random mating is only a*a, while from an inbreeding you mentioned is 1/64.
Usually the recesssively pathogenic alleles are rare, and thus a<<1/8.
Therefore the risk for your gf to get two a alleles, which results in a
recessive homozygote, is much higher than the others. |
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r****o 发帖数: 105 | 7 本文献给YL
(十三)神奇的inbred
Blanche在第一天上午的课程中花了很多时间讲解一些小鼠遗传学的基本概念。其
中最重要的一个概念是近系小鼠(inbred strain)。Inbred strain 的特点是所有的基
因位点都是纯合的(homozygous)。严格的定义是经过连续二十代兄弟/姐妹交配(
brother sister crossing)的小鼠品系。由于是兄弟/姐妹交配,一旦交配的雌鼠和雄
鼠在某个位点是同样纯合的基因型,以后所有的后代在这个位点都会保持住纯合的基因型
。这样经过多代交配,小鼠所有的基因都会变得纯合。兄弟/姐妹交配是很典型的近亲繁
殖,所以一些有害的隐性基因会显露出来,导致小鼠的生育能力急剧下降,这个现象叫做
inbreeding depression。所以在inbred小鼠出现之前,不少人认为完全纯合的小鼠是不
可能培育出来的。但事实上,只要大规模交配,总能找到能够生育的小鼠,并且过了第八
代之后,小鼠中的有害等位基因往往已经被去掉了,inbreeding depression的现象也随
之消失。不同的inbred小鼠品系有专门的命 |
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n******o 发帖数: 362 | 8 From wikipedia.
Children
Darwin's children
William Erasmus Darwin (27 December 1839–1914)
Anne Elizabeth Darwin (2 March 1841 – 23 April 1851)
Mary Eleanor Darwin (23 September 1842 – 16 October 1842)
Henrietta Emma "Etty" Darwin (25 September 1843–1929)
George Howard Darwin (9 July 1845 – 7 December 1912)
Elizabeth "Bessy" Darwin (8 July 1847–1926)
Francis Darwin (16 August 1848 – 19 September 1925)
Leonard Darwin (15 January 1850 – 26 March 1943)
Horace Darwin ... 阅读全帖 |
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n******o 发帖数: 362 | 9 From wikipedia.
Children
Darwin's children
William Erasmus Darwin (27 December 1839–1914)
Anne Elizabeth Darwin (2 March 1841 – 23 April 1851)
Mary Eleanor Darwin (23 September 1842 – 16 October 1842)
Henrietta Emma "Etty" Darwin (25 September 1843–1929)
George Howard Darwin (9 July 1845 – 7 December 1912)
Elizabeth "Bessy" Darwin (8 July 1847–1926)
Francis Darwin (16 August 1848 – 19 September 1925)
Leonard Darwin (15 January 1850 – 26 March 1943)
Horace Darwin ... 阅读全帖 |
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y****g 发帖数: 36950 | 10 【 以下文字转载自 WaterWorld 讨论区 】
发信人: yugong (愚公挖坑), 信区: WaterWorld
标 题: Re: 回国几次,发现不少人夸孩子长得好就说长得真像混血儿。
发信站: BBS 未名空间站 (Wed Oct 24 05:54:32 2012, 美东)
LOL 民科扯淡哪!要是遗传到双方的糟糕基因就要更恐怖了。有白人容易过敏发胖皮肤
癌多毛的基因,有的黄种人的弱点基因什么得肝炎什么的都到那后代身上就搞笑了。
人家培养生物杂交品种是要淘汰毁灭一大批不成功的杂种,留下个别碰巧集合了优秀基
因的下来,然后再和同样优胜劣汰的个体混合,再淘汰再培育很多代才能得到稳定的成
功品种。
人类生孩子能生10个8个然后掐死绝大部分不成功的失败杂种,留下一个成功的优秀杂
种再去找另一个优秀杂种去混合吗?生孩子是赌场roll dice赌博吗?
而本族的血统通过千万年的大区域的地理范围内部混血后自然淘汰已经比较稳定了,所
以本族内部生出来的孩子自然稳定性要好很多,失败的孩子几率要小不少
现在几大人种都是经过了几万年的进化混合出来的稳定品种,但是这几大人种再混合
就有如你拿斑点... 阅读全帖 |
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M1 发帖数: 2038 | 11 别和美国比了,随便哪个拉美国家,呆着都比日本养眼,小日本几千年同族窝在小岛上
inbreeding,长得不奇形怪状都难怪了 |
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M1 发帖数: 2038 | 12 单一民族,还排外自居,结果只能窝在小岛上inbreeding,结果全长得歪瓜裂枣奇形怪
状,若不是驻日美军和外发女对其进行基因改良,小日本会长得更惨 |
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w*********g 发帖数: 30882 | 13
種族、演化、及行為:
Race, Evolution, and Behavior:
生命歷史的遠景
A Life History Perspective
特殊精簡第二版
2nd Special Abridged Edition
菲律普·洛旭庭 教授 Professor J. Philippe Rushton
加拿大歐達里歐省倫敦市的西歐達里歐大學
University of Western Ontario, London, Ontario, Canada
1

對菲律普·洛旭庭的贊賞
種族、演化、及行為
“一個爭論不休的議題....人類族群為適應不同環境, 演化不同的生殖策略, 這些 策
略與腦部大小及智力高低是息息相關的 o 演化過程中, 移居到刺骨寒風的歐 洲及北非
人產下較少小孩, 不過這些小孩卻被細心呵護著; 相對, 持續停留在溫 暖但無法預期
的非洲環境裡, 人們卻傾向生許多的小孩 o”
莫而肯·布朗 (Malcolm W. Browne) 紐約時代書評雜誌 (New York Times Book
Review)
“洛旭庭是位嚴謹的學... 阅读全帖 |
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T**********e 发帖数: 29576 | 14 明明有人接手,还非要杀这个长颈鹿,杀完当着观众肢解,小伙伴都吓傻了。
Anger Erupts After Danish Zoo Kills a ‘Surplus’ Giraffe
Marius the reticulated giraffe died at the Copenhagen Zoo on Sunday. He was
2 years old.
The cause of death was a shotgun blast, and after a public autopsy, the
animal, who was 11 feet 6 inches, was fed to the zoo’s lions and other big
cats.
Administrators said they had decided to kill Marius, who was in good health,
because his genes were well represented among the captive giraffe
population in European z... 阅读全帖 |
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T**********e 发帖数: 29576 | 15
主要这个动物园的解释很得liberal的真髓,为了这个动物好,所有把它干掉。
Mr. Holst said he had decided against sending Marius to another zoo because
doing so would have opened the door to inbreeding and potentially removed a
place for a giraffe whose genetic makeup was more valuable in terms of
future offspring in captive breeding programs.
As for individual offers, he said giraffes were social animals and could not
be kept in isolation. |
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b********n 发帖数: 38600 | 16 http://infoproc.blogspot.co.nz/2011/05/forbidden-thoughts.html
The video below is of the final lecture in Biology 7.012 at MIT (2004), co-
taught by Professor Eric Lander, Director of the Broad Institute at MIT and
a principal leader of the Human Genome Project, and Professor Robert A.
Weinberg, winner of the 1997 National Medal of Science. Weinberg delivers
the final lecture.
Weinberg (@ 32:40): ... And what happens if one of these days people
discover alleles for certain aspects of cognitive f... 阅读全帖 |
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s****e 发帖数: 7018 | 17 王室为了维持权势,inbreeding 特别多
有遗传病就是这种婚姻的后果之一
血友病 Hemophiliacs,还有的人下巴特别长Habsburg Jaw |
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n****o 发帖数: 950 | 18 看起来是hate crime没得跑,但貌似也有自恨在里头。
Tony Liotta · Rome, Italy
Ironically, she could pass for a half-Asian herself.
Like · Reply · 9 · May 30, 2016 10:20am
Scott Empey
That's the inbreeding your seeing.
Like · Reply · 8 · May 30, 2016 4:53pm
Chelsee Larae Kolterman · Phoenix, Arizona
She does have Asian in her. I can't remember exactly what. I use to be her
friend for years! |
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W***I 发帖数: 552 | 19 哥哥娶妹妹、最纯
纯种不是一个好概念、意味着inbreeding
况且中国自古边界不定、人员自由流动、和海岛国家比、根本谈不上纯
你是半文盲了
[在 lasp ( b) 的大作中提到:]
:日本人50%东亚基因
:什么叫纯?
:★ 发自iPhone App: ChineseWeb 13
:★ 发自iPhone App: ChineseWeb 13 |
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M*******n 发帖数: 10087 | 20 The existence of men has long puzzled scientists. Sexual reproduction is
inefficient and costly, yet the majority of multicellular species opt for
this method to keep their genes going. So why do men exist? Researchers from
the University of East Anglia (UAE) believe they may have finally cracked
it, suggesting that the evolutionary force known as ‘sexual selection’
plays a key role in improving population health and protecting us against
extinction.
“男人为什么会存在”长期以来一直困扰着科学家们。性繁殖效率低、成本高,但大多
数多细胞物种... 阅读全帖 |
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k*******h 发帖数: 854 | 21 很难想象一个民族,大都丑得不忍卒看。
他们移民又多,在海外直接拉低了亚洲人的整体水平。
韩国人的长相,跟他们的经济成就完全不匹配。
欧洲、中东也有无数小国,为什么他们的inbreeding就没有造成类似的局面? |
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b*********3 发帖数: 1709 | 22 WVSP: Wasp spray used as alternative meth, contributed to three overdoses
https://wchstv.com/news/local/wvsp-wasp-spray-used-as-synthetic-meth-
contributed-to-three-overdoses
Inbreeding + wasp spray = More diverse gene pool
Most of these people have no idea why their lives have been stripped of
meaning. They only know this doesn't work for them. You can work hard all
your life, but after five or ten years it is apparent to everyone with a
brain that there are few ways to get ahead unless you a... 阅读全帖 |
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b*********3 发帖数: 1709 | 23 To you 老将, happy indigenous Inbreeding day. |
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t******g 发帖数: 183 | 24 就這樣,全國南北還互相看不順眼
結果全力一統
造成多樣性喪失
對瘟疫毫無招架之力 |
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l****z 发帖数: 29846 | 25 Cuisines from My Stepfather
By Mark Steyn
April 28, 2012 4:00 A.M.
A couple of days ago, Obama-campaign top dog David Axelrod threw in the
towel on the dog war. “I thought it was a little absurd to talk about what
the president had done as a ten-year-old boy,” he sniffed to MSNBC’s
Andrea Mitchell, which is as near as the suddenly sheepish attack dog will
ever get to conceding that Barack Obama is the first dog-eating president in
the history of the republic. For those coming late to the feud, t... 阅读全帖 |
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l********s 发帖数: 395 | 26 Even after leaving years, my postdoc boss told me not to apply for his
department...is it because of inbreeding suspicion or potential competition
with him? |
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m********5 发帖数: 17667 | 27 这是基因定的!人和动物的差别就是能不能Hold住。
很多人是不能一直管住自己动物性的一面。
最近,英国科学家发现部分女性四处寻欢作乐的行为其实是一种生物「演化」的结果:
雌性生物藉由跟无数雄性交配,筛选最好的精子以大量繁衍。
英国东英格兰大学(University of East Anglia)的一个研究团队以4隻甲虫为实验对
象,结果发现无论雌甲虫跟几隻雄性交配,都会出现类似的繁衍结果。不过,当科学家
为牠们进行近亲交配(inbreeding)时,只跟单一雄性交配的雌甲虫所产下的后裔减少
了一半之多。
接著,研究团队故意为甲虫设计出「基因障碍」(genetic bottleneck),发现牠们繁
衍不到第15代,雌甲虫就开始学会与较多雄性交配。盖吉(Matthew Gage)教授表示,
「这个令人兴奋的结果显示,雌性生物的杂交机制能够使促进繁衍后代。」
「一妻多夫」(polyandry)在生物界中十分常见,包括大猩猩和禽类都採此方式繁衍
。研究结果显示,雌性生物具有演化机制,能够经由与众多对象交配,选择出最适合生
物演化的精子。
,
那个女的
国做官的在搜刮民财兼找二奶方面的表现。 |
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x*********s 发帖数: 5554 | 28 我订阅了psi-k的找工作广告,今天看到一个调侃比较有意思~
An announcement has been added in the "PSI-K" site at PSI-K http://cselnx9.dl.ac.uk:8080/portal
Subject: postdoc position
Category: Job
From: juttar ogal
Date: 09-Sep-2011 17:52
Message:
I am desperately searching for eager victims - postdocs or PhD students -
mine or other supervisors' - to make my workhorses and to plunder ideas from
. I am a dirty Hun who seethes from jealousy out of every pore. I cannot do
research myself because I'm narrow-minded, rigid-brai... 阅读全帖 |
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d*******l 发帖数: 2567 | 29 买买提上都是高智商的人,为什么政治上那么...?
我党连邓都把政治体制改革提到亡党亡国的高度,你还视民主为洪水猛兽。
权力基础不好的,老怕颠覆,钱来路不明,老怕遭抢,身体羸弱的一碰就跳,一个道理
。胡core我看是政治上最没安全感的一届。现在国家领导人基本是
我党inbreeding,强的方面会更强,弱点嘛,只会更弱,因为政改的成本会
随着时间的延误越来越高,嘿嘿。 |
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d*******n 发帖数: 4778 | 30 Wiley Interdiscip Rev Dev Biol. 2012 Mar;1(2):267-75. doi: 10.1002/wdev.10.
Epub 2011 Nov 17.
Self-incompatibility in Petunia: a self/nonself-recognition mechanism
employing S-locus F-box proteins and S-RNase to prevent inbreeding.
Wang N, Kao TH.
请发送到:3*******[email protected]
再次感谢! |
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l**n 发帖数: 7272 | 31 你如果这么定义“纯种”,那我同意。不过你这个定义有点广义。呵呵
我手头没有书。就wiki一下:
纯种 - 基本资料
即纯合体,由两个基因型相同的配子结合成的合子发育成的个体.
纯种 pure breed
由近亲交配或自体受粉产生的个体,在有关目标基因的组成上不存在杂合性。一般
来说,是指一对或数对目标基因为纯合型的个体。纯系则是指所有有关的基因构成为纯
合型的个体可以认为是纯种的一种特殊情况。纯种的对义词为杂种(cross breed)
Because pure-breeding creates a limited gene pool, purebred animal breeds
are also susceptible to a wide range of congenital health problems.[1] This
problem is especially prevalent in competitive dog breeding and dog show
circles due to the singular emphasis on aesthetics rathe... 阅读全帖 |
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d**b 发帖数: 1286 | 32 越说越扯了,稍有常识的人都知道美国最有文化的是以波士顿为代表的新英格兰地区(
当然美国那点文化跟欧洲,中国是不能比的)。其它纽约为中心的tri-state地区,DC-
VA-MD地区等也不错。中部大农村和人文没有半毛关系!WV和KY,MS是美国最穷的州,
当地人受教育程度极低,很多近亲繁殖。你随便google “Inbreeding in West
Virginia”就知道了。ACC当年不肯要WVU是有道理的。
当然你的人文定义好像是哪里白人比例最高哪里就最有文化,所以在你看来Kansas,
Nebraska,WV这些红脖,矿工为主的白人州“最有人文”。lol |
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g****d 发帖数: 3461 | 33 "The high degree of inbreeding amongst the Ptolemies is also evident when
one considers Cleopatra's immediate family. Her father was likely the uncle
of Cleopatra's mother. There were three uncle/niece and three brother/sister
relationships in her ancestry going back to a single set of either great
grandparents or great great grandparents, depending on how the ancestry is
traced."
kleos pater - father's fame |
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a***c 发帖数: 2443 | 34 It's rather difficult to summarize the whole inbreeding vs outbreeding
depression debate; I was merely presenting the other side of the
argument.
By the way, how is that a typical Asian accent? That sounds 100% north-
american to me, he's very soft-spoken though if that's what you mean. |
|
a***c 发帖数: 2443 | 35 经典混血美女 Devon Aoki
又是科普时间, 不要再说什么混血好养活之类的SB说话好不好?
参见: inbreeding vs outbreeding depression; coadapted gene complex. 还处于争
论阶段的, 不是绝对的理论就不要盲目转述. 最起码也要设个scope才能立论吧, 看一代? 三代还是更远? 中国人就是人口密集又喜欢以讹传讹才这
么好忽悠; 他妈的小农DNA就是不配学科学. |
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b********n 发帖数: 688 | 36 一派胡言
自己去看看inbreeding里面多少是同性恋? 没有! 什么father-daughter之类的乱伦
都是异性恋 |
|
y****g 发帖数: 36950 | 37 LOL 民科扯淡哪!要是遗传到双方的糟糕基因就要更恐怖了。有白人容易过敏发胖皮肤
癌多毛的基因,有的黄种人的弱点基因什么得肝炎什么的都到那后代身上就搞笑了。
人家培养生物杂交品种是要淘汰毁灭一大批不成功的杂种,留下个别碰巧集合了优秀基
因的下来,然后再和同样优胜劣汰的个体混合,再淘汰再培育很多代才能得到稳定的成
功品种。
人类生孩子能生10个8个然后掐死绝大部分不成功的失败杂种,留下一个成功的优秀杂
种再去找另一个优秀杂种去混合吗?生孩子是赌场roll dice赌博吗?
而本族的血统通过千万年的大区域的地理范围内部混血后自然淘汰已经比较稳定了,所
以本族内部生出来的孩子自然稳定性要好很多,失败的孩子几率要小不少
现在几大人种都是经过了几万年的进化混合出来的稳定品种,但是这几大人种再混合
就有如你拿斑点狗和藏獒去混合,你希望随便生一个出来的就能比斑点狗或者藏獒更
完美?99%的结果就是一条没价值的土狗。
这句话是网上的,"加拿大著名人种智能方面的权威P.RUSHTON教授经过对不同人种间混
血儿多年的智商研究发现,混血儿的智力通常会比智商占优势的纯正人种低下很多,东
亚人种平均智商高达1... 阅读全帖 |
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y****g 发帖数: 36950 | 38 【 以下文字转载自 Military 讨论区 】
发信人: yugong (愚公挖坑), 信区: Military
标 题: Re: 回国几次,发现不少人夸孩子长得好就说长得真像混血儿。 (转载)
发信站: BBS 未名空间站 (Wed Oct 24 06:12:48 2012, 美东)
发信人: yugong (愚公挖坑), 信区: WaterWorld
标 题: Re: 回国几次,发现不少人夸孩子长得好就说长得真像混血儿。
发信站: BBS 未名空间站 (Wed Oct 24 05:54:32 2012, 美东)
LOL 民科扯淡哪!要是遗传到双方的糟糕基因就要更恐怖了。有白人容易过敏发胖皮肤
癌多毛的基因,有的黄种人的弱点基因什么得肝炎什么的都到那后代身上就搞笑了。
人家培养生物杂交品种是要淘汰毁灭一大批不成功的杂种,留下个别碰巧集合了优秀基
因的下来,然后再和同样优胜劣汰的个体混合,再淘汰再培育很多代才能得到稳定的成
功品种。
人类生孩子能生10个8个然后掐死绝大部分不成功的失败杂种,留下一个成功的优秀杂
种再去找另一个优秀杂种去混合吗?生孩子是赌场roll dice赌博吗... 阅读全帖 |
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y****g 发帖数: 36950 | 39 【 以下文字转载自 Military 讨论区 】
发信人: yugong (愚公挖坑), 信区: Military
标 题: Re: 回国几次,发现不少人夸孩子长得好就说长得真像混血儿。 (转载)
发信站: BBS 未名空间站 (Wed Oct 24 06:12:48 2012, 美东)
发信人: yugong (愚公挖坑), 信区: WaterWorld
标 题: Re: 回国几次,发现不少人夸孩子长得好就说长得真像混血儿。
发信站: BBS 未名空间站 (Wed Oct 24 05:54:32 2012, 美东)
LOL 民科扯淡哪!要是遗传到双方的糟糕基因就要更恐怖了。有白人容易过敏发胖皮肤
癌多毛的基因,有的黄种人的弱点基因什么得肝炎什么的都到那后代身上就搞笑了。
人家培养生物杂交品种是要淘汰毁灭一大批不成功的杂种,留下个别碰巧集合了优秀基
因的下来,然后再和同样优胜劣汰的个体混合,再淘汰再培育很多代才能得到稳定的成
功品种。
人类生孩子能生10个8个然后掐死绝大部分不成功的失败杂种,留下一个成功的优秀杂
种再去找另一个优秀杂种去混合吗?生孩子是赌场roll dice赌博吗... 阅读全帖 |
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d**b 发帖数: 1286 | 40 楼主扯蛋了,稍有常识的人都知道美国最有文化的是以波士顿为代表的新英格兰地区(
当然美国那点文化跟欧洲,中国是不能比的)。其它纽约为中心的tri-state地区,DC-
VA-MD地区等也不错。中部大农村和人文没有半毛关系!WV和KY,MS是美国最穷的州,
当地人受教育程度极低,很多近亲繁殖。你随便google “Inbreeding in West
Virginia”就知道了。当然楼主的人文定义好像是哪里白人比例最高哪里就最有文化,
所以在他看来Kansas,Nebraska,WV这些红脖,矿工为主的白人州“最有人文”。lol |
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H********g 发帖数: 43926 | 42 【 以下文字转载自 Military 讨论区 】
发信人: TravisBickle (Travis), 信区: Military
标 题: 哥本哈根动物园彻底丧心病狂了
发信站: BBS 未名空间站 (Sun Feb 9 23:57:42 2014, 美东)
明明有人接手,还非要杀这个长颈鹿,杀完当着观众肢解,小伙伴都吓傻了。
Anger Erupts After Danish Zoo Kills a ‘Surplus’ Giraffe
Marius the reticulated giraffe died at the Copenhagen Zoo on Sunday. He was
2 years old.
The cause of death was a shotgun blast, and after a public autopsy, the
animal, who was 11 feet 6 inches, was fed to the zoo’s lions and other big
cats.
Administrators said they had decid... 阅读全帖 |
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m***h 发帖数: 23691 | 43 that's called inbreeding, very bad practice |
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m***h 发帖数: 23691 | 44 不管活不活, 遗传病太厉害了。 好的breeder都可以避免inbreeding的。 |
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d********a 发帖数: 9567 | 45
inbreeding 在品种创立期都是必须的。 |
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h******g 发帖数: 1521 | 46 这个不是必然的,如果父母双方都没有问题,inbreeding其实也不是特别有问题,纯
种也有优势的,这是对个人而言的,当然对整个群体而言,这种近亲繁殖弊大于利吧。 |
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c****t 发帖数: 19049 | 47 THE PACIFIC JOURNAL OF ADAM EWING
Thursday, 7th November—
Beyond the Indian hamlet, upon a forlorn strand, I happened on a trail of
recent footprints.
Through rotting kelp, sea cocoa-nuts & bamboo, the tracks led me to their
maker, a White man,
his trow-zers & Pea-jacket rolled up, sporting a kempt beard & an outsized
Beaver, shoveling
& sifting the cindery sand with a teaspoon so intently that he noticed me
only after I had hailed
him from ten yards away. Thus it was, I made the acquaintance of... 阅读全帖 |
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l*******G 发帖数: 1191 | 48 天大是落后,最主要的就是死板,没有活力,政治挂帅。你想想,领导都是本校毕业的
,都是辅导员出身,能好吗?最近回天大看了看,靠,图书馆的布置还不如15年以前。
还有就是青年教师学生没有创业的。鞍山西道原来好歹叫科技一条街,现在全变旅馆和
商品房了。天大南开现在已经是市中心了,不再是读书的静土了。房地产压得所有其他
小企业都没法搞好。还是搬到郊外好。我强烈反对inbreeding,会与天大老师同学合作
交流,也愿意捐钱,但坚决不回天大当老师。 |
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l*******G 发帖数: 1191 | 49 天大是落后,最主要的就是死板,没有活力,政治挂帅。你想想,领导都是本校毕业的
,都是辅导员出身,能好吗?最近回天大看了看,靠,图书馆的布置还不如15年以前。
还有就是青年教师学生没有创业的。鞍山西道原来好歹叫科技一条街,现在全变旅馆和
商品房了。天大南开现在已经是市中心了,不再是读书的静土了。房地产压得所有其他
小企业都没法搞好。还是搬到郊外好。我强烈反对inbreeding,会与天大老师同学合作
交流,也愿意捐钱,但坚决不回天大当老师。 |
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