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(单词翻译:双击或拖选)
人的身高很大程度上取决于基因,其他因素如饮食和环境对身高也有所影响。
Analysis of DNA1 from 180,000 people finds dozens of gene2 regions associated with height differences, and shows how researchers can analyze3 traits that are determined4 by complex genetics. Karen Hopkin reports
For those of you who love a tall tale, the list of genetic5 variations that determine human height has just experienced a growth spurt6. The findings were published by the journal Nature. [Citation to come.]
Height has a lot to do with genetics. If your parents don’t need a step stool to reach the top shelf, you’re probably right up there, too. About 80 percent of height is due to DNA. The rest depends on diet and other environmental factors.
In the new study, researchers analyzed7 DNA from more than 180,000 people, looking for genetic differences that dictate8 height. The scientists, part of a consortium called the Genetic Investigation9 of Anthropocentric Traits (or GIANT), found 180 gene regions that govern how tall we get.
The variants10, 100 of which were previously11 unknown, aren’t sprinkled randomly12 around the genome. Many cluster around sets of genes13 associated with growth, including 21 variants found in or near genes that regulate the building of bone.
Of course even this new list comes up short. The 180 variations account for only 10 percent of the difference between a jockey and a jumpshooter. But the work shows that research into complex genetic traits is getting off the ground.
—Karen Hopkin
1 DNA | |
(缩)deoxyribonucleic acid 脱氧核糖核酸 | |
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2 gene | |
n.遗传因子,基因 | |
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3 analyze | |
vt.分析,解析 (=analyse) | |
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4 determined | |
adj.坚定的;有决心的 | |
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5 genetic | |
adj.遗传的,遗传学的 | |
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6 spurt | |
v.喷出;突然进发;突然兴隆 | |
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7 analyzed | |
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析 | |
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8 dictate | |
v.口授;(使)听写;指令,指示,命令 | |
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9 investigation | |
n.调查,调查研究 | |
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10 variants | |
n.变体( variant的名词复数 );变种;变型;(词等的)变体 | |
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11 previously | |
adv.以前,先前(地) | |
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12 randomly | |
adv.随便地,未加计划地 | |
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13 genes | |
n.基因( gene的名词复数 ) | |
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