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Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes. Scientists have

发表于:2018-12-24 / 阅读(177) / 评论(0) 分类 Scientific American(十二)月

Gene Stops Ovaries from Testifying A mouse study in the journal Cell finds that a gene in females must remain active throughout her life to keep her ovaries from turning into testes. Karen Hopkin reports Little girls are made of sugar and spice and,

发表于:2019-01-30 / 阅读(339) / 评论(0) 分类 60秒科学

I want you to imagine two couples 我希望大家设想一下,两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天,相同的时刻 each conceiving a baby -- okay? 每对怀上了

发表于:2019-02-13 / 阅读(174) / 评论(0) 分类 TED演讲教育篇
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alastrinic
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Antwerp
asunderness
auxiliary process time
axiomesio-occolusal
baritite
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breeding in sea
brodkey
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Cape Prov.
claying bar
cocoa puff
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crater carbon arc lamp
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declare sth. null
dichloroisoproterenol
energy usage
fatphobic
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gateaux differentiable operator
gentilesse
gnamma
god-centered
grammaires
heave a ship down
honea
host language system
hydrocarbon of ethylene serise
if at all possible
infringement of patent
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iterative region
jasso
left component
liebermanns
linear electronic matrixing
liver spotting
longicarpus
MBB (make-before-break)
medlocke
Minarette
mis-saying
muckin' around
multiple electrode array
nautical scale
non-constituents
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on the lee of
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orthogonal state
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pluronics
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pretranslation program
projection operator
pyloric sphincter,Musculus sphincter pyloricus
rake bar type side delivery rake
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