标签:基因食物 相关文章
[1] Overlooked in the arguments about the morality of artificially reproducing life is the fact that, at present, cloning is a very inefficient procedure. The incidence of death among fetuses and offspring produced by cloning is much higher than it i
The woolly mammoth was a very large elephant-like mammal that lived on Earth several thousand years ago. Some mammoths grew to be four meters high and the largest weighed almost nine tons. Both male and female mammoths had very large tusks and walked
Newly Discovered Bones Show Genetic Mix of Ancient Human Relatives Scientists say they have discovered the remains of an ancient female whose mother was a Neanderthal and whose father was Denisovan. Neanderthals and Denisovans are early human species
HAPPINESS has traditionally been considered an elusive and evanescent thing. To some, even trying to achieve it is an exercise in futility. It has been said that happiness is as a butterfly which, when pursued, is always beyond our grasp, but which i
For many people summer equals tomatoes. Thats when folks can get their hands on gorgeous heirloom and traditional varieties, full of tomatoey flavor. Such tomatoes provide a stark contrast to year-round supermarket ones, famous for tasting like, well
[00:04.91]54) Anti-sense Technology [00:10.55]Research scientists have reported success in using an experimental method [00:17.97]called anti-sense technology to treat people with cancer. [00:23.41]For years, researchers have tested anti-sense techno
I remember going to Roseto for the first time, and you'd see three-generational family meals, all the bakeries, 我记得第一次来到罗赛托的时候,看到祖孙三代一起用餐, 看到很多面包师; the people walking up and down the s
A 16-year-old girl, a high school student from New York, Anna-Sophia Boguraev, 一个16岁的女孩,一个来自纽约的高中生,Anna-Sophia Boguraev, wondered whether changes to the DNA of astronauts could be related to this immune suppressi
We are living on a planet with a lot of activities, with reference to our living environment,done by faith and guess alone. 我们对于这个地球上所发生的许多现象,都只是通过信念或猜测来认知。 Our lives depend upon these cre
受到鲍鱼壳的启发,安琪拉贝尔彻用病毒来制造人类能使用的优雅的纳米结构。通过定向进化挑选出高性能基因,她生产出一种病毒,这种病毒能构筑强大的新的电池、清洁的氢燃料和破纪录
This is Scientific American's 60-second Science. I'm Christie Nicholson. Got a minute? We might think perfect pitch is an innate talent. Well, a study in the American Journal of Human Genetics is providing some evidence for that. Perfect pitch, aka a
[00:03.13]Listen and Write 听一听,写一写 [00:09.13] [00:42.72]Sounds and Letters 字母与发音 [00:47.79]book书 foot脚 cookies饼干 [00:53.79]moon月亮 spoon勺子 food食物 [01:03.93]Listen for sounds 听发音 [01:08.08] [01:28.33]Read
The number of people living past 100 has soared by 71 per cent in the past decade. And while one expert believes this figure will continue to rise, he stated that anyone hoping to live for double or triple this time will be disappointed. Speaking at
Scientists: Gene Editing Should Stay in Laboratories 科学家称基因编辑技术应该留在实验室 Scientists are debating how to limit their newly-discovered power to change genetic structure. Scientists already modify the genes of farm animal
清晨起来,一杯新鲜的研磨咖啡可以让人精力充沛。 A cup of freshly ground coffee is what it takes to get some people moving in the morning. 但一项最新的研究表明,这种功效可能是咖啡的香气而不是咖啡本身产
Sally and Gene were running late. It was a hot summer evening. It was even hotter in the underground subway station. Finally, the train arrived. It was crowded. The doors opened. Nobody exited. Sally tried to get inside. But a woman was standing near
In the early days, this was an exceedingly painstaking process. 早年,这是个极费力气的过程。 Work on a single bacterium could easily consume a year. 研究一个细菌就可能一下子花掉一年时间。 At that time, according to Wo
Viruses prosper by hijacking the genetic material of a living cell and using it to produce more virus. 病毒掠夺活细胞的基因材料,用来制造更多的病毒,从而大量生长。 They reproduce in a fanatical manner, then burst out in
Adrienne: Hey, Ian, tell me about the time you were at the hospital. 埃德里安娜:嗨,伊恩,跟我说说你第一次去医院是什么时候吧。 Ian: What, the first time I went to the hospital? 伊恩:什么,我第一次去医院?
If the axis-tilt theory had been refuted, 倘若地轴倾斜理论被观察否定了 its defenders would have had nowhere to go. 它的支持者们就无路可退了 No easily implemented change could make that tilt 没有什么信手拈来的变动能