Indeed, Dr. Pääbo and his colleagues were publicly embarrassed when an earlier analysis of Neanderthal DNA turned out to be thoroughly contaminated by modern human genes from lab workers.
早先有分析指出,尼安德特人的DNA在实验室操作时完全被现代人基因所污染了,这一点令帕博博士及其同事都倍感尴尬。
Our lab has studied some effects of radiation on DNA, such as UV exposure, but nothing on Earth compares to the environments we hope to study outside of the Earth's atmosphere.
我们的实验室已经研究一些辐射对DNA的影响,例如紫外线照射,但在地球上没法比拟我们想要研究的外太空环境。
Scientists wearing goggles and lab coats look up as we come in. Some are working on machines to extract DNA from samples, others measuring hormones in samples.
实验室里,科学家们戴着护目镜,穿着白大褂,有的在用仪器从样本中提取DNA,有的在测量样本中的激素含量。
At Dr. Kwok’s ninth-floor lab, three sets of robots prepare the DNA samples shipped from Oakland.
在九楼郭培炎的实验室里,有三套设备准备扫描奥克兰送来的DNA样本。
Using a computer code and four bottles of chemicals, Venter's lab creates the largest man-made DNA structure by synthesizing and assembling the 582,970-base-pair genome of a bacterium.
借助计算机代码和四瓶化学品,文特尔的实验室通过合成和组装,创造了最大的人造dna结构,即细菌582970-碱基对的基因组。
But with just a vial of spit each from Cassandra, myself and Laszlo, I could find out with DNA-lab-tested certainty which of us had influenced our child more.
但是如今,只要卡桑德拉、我还有我儿子每个人向试管里吐出点唾沫,我就可以根据DNA实验室测试的结果,确定是我和太太之间到底谁对我们的孩子影响更多。
Hence, every forensic lab is confronted with cases where the DNA profile obtained from the evidence material does not match that of any known suspect tested, nor anybody in the criminal DNA database.
因此,有的时候从证物上获得的DNA分析结果可能与任何一个嫌疑人的检测结果都不匹配,在罪犯DNA数据库中也找不到相匹配的结果。这样的问题每个法医室都会遇到。
Cells from the blastocyst then were cultured in a lab dish and yielded stem cells that were an exact match to the donor's DNA.
之后科学家从囊胚中提取出细胞,并在培养皿里培育成干细胞,干细胞的DNA与那名成熟细胞捐献者的DNA完全一致。
We can cut DNA exactly in the lab, but we cannot predict and control the effects on the whole plant genes after the "outside" genes which are transplanted into the plant.
虽然在实验室条件下人们可以非常精确地对DNA进行剪接,但一个外源基因导入植物体后,对整个植物基因组的影响人们尚不能完全预测和控制。
But this year, the same lab published the nuclear genome of Neandertals, representing 10 million times as much DNA (see "Breakthrough of the year," p. 1605).
但今年,该实验室发表了穴居人的核基因组,声称为DNA的1千万倍之多(参见《今年的重大突破》第1605页)。
Next, Kohler's lab is investigating whether the dark state can be linked to DNA damage.
下一步,康研究室将研究黑暗状态是否和DNA破坏有关。
DNA research shows that ornithologists botched the organization of even the larger branches on the avian family tree, said Thomas Schulenberg, of the Cornell Lab of Ornithology.
来自康奈尔鸟类实验室的托马斯·舒伦·伯格指出,DNA研究结果反映出,鸟类学家就连鸟类族谱中一些比较大的分支结构都搞错了。
DNA research shows that ornithologists botched the organization of even the larger branches on the avian family tree, said Thomas Schulenberg, of the Cornell Lab of Ornithology.
来自康奈尔鸟类实验室的托马斯·舒伦·伯格指出,DNA研究结果反映出,鸟类学家就连鸟类族谱中一些比较大的分支结构都搞错了。
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