who wasn't genetically engineered, but is able to buy the genetic identity of another man in order to pursue his dream of travelling into space. The film's title uses the letters G, A, T and C, which are the four chemical codes ma...
the COVID-19 infection rate dropped up to 2% per day21. To help put this in perspective,epidemiologyguidelines dictate that a COVID-19 positive rate below 5% within a community for at least 2 weeks
"We’re thinking about how we canengineerplants to replace functions of the things that we use every day,"explained Michael Strano, a professor of chemical engineering at MIT. 麻省理工学院的化学工程教授迈克尔·斯特拉诺解释说:“我...
In lung adenocarcinoma, mutations in 22 out of 40 common cancer genes were under significant subclonal selection, including classical tumour initiators such as TP53 and KRAS. We defined evolutionary dependencies between drivers, mutational processes and whole genome doubling (WGD) events. Despite ...
Another way to heat things is with fire. Fire is just a chemical reaction – many types of molecules (like methane, or alcohol) contain a lot of ‘tension’, that is to say, they are like loaded springs just waiting to go off. Other molecules (often oxygen) hold the ‘key’ to unlo...
C4 photosynthesis, unlike the submergence tolerance ofSub1rice, is controlled by many genes, not just one, which makes it a challenging trait to introduce. On the other hand, says Quick, “it has evolved independently 62 times. That suggests it can’t be that difficult to do.” By “knock...
an undergraduate in chemical engineering 一个化学工程专业的本科生 natural selection n. 自然选择;物竞天择 perfect chance n. 绝佳机会,完美机会 act on 对事物起作用 Alcohol acts quickly on the brain. 酒精对大脑迅速产生影响。 我做了个公众号,定期推送有利于高考的干货内容,欢迎关注: http://weixin.qq...
The rates at which mRNA transcripts are generated for given genes. Half-lives The times it takes for a set of molecules (mRNAs and proteins in the context of this Review) to reduce in number to half of their original quantity via degradation. The term implies that degradation follows first-...
Cech would know. In 1989, hewon the Nobel Prize in Chemistryalongside Sidney Altman for their discovery that RNA “is not only a molecule of heredity, but also can function as a biocatalyst,” or enzyme — basically a kind of spark that can facilitate a chemical reaction. For many years,...
Venki Ramakrishnan:Aging is an accumulation of chemical damage to the molecules inside our cells, which damages the cells themselves, and therefore the tissue, and then eventually us as an organism. Surprisingly, we start aging when we’re in the womb, although at that point, we’re growing ...