, are caused by tiny changes in DNA. But now scientists realize that most of the changes occur not in the genes themselves, but in the “junk” part of the DNA. They are able to keep track of how and why ……

THE discovery of DNA has had a lot of important effects. In the criminal (刑侦的) world, DNA testing... understand our own history. Through studying changes in DNA, some scientists have found that we left ……

, unhealthy cells would develop throughout the body. Scientists still barely understand how the DNA... healthy. But are you? Human bodies are the most complex machines in the world, which means ……

all the different cells in our bodies. They also determine how the cells will bearranged.So, DNA... of your eyes and even how to build your brain.Crick and Watson found that DNA was structured ……

THE discovery of DNA has had a lot of important effects. In the criminal (刑侦的) world, DNA testing... understand our own history. Through studying changes in DNA, some scientists have found that we left ……

IN nature, living things evolve through changes in their DNA. In the case of the chicken, DNA from... and female DNA. These changes only had an effect at the point where a new zygote is created ……

’t just the world of police work where DNA fingerprinting has been *indispensable, however. Just last... murder said to have taken place in 2002, how did authorities finally catch up with Gao after almost three ……

worried, by the power of the technology he released upon the world.The patterns within DNA are unique... similar systems.But there are fears about the stored DNA samples and how they could be used to harm ……

基因结构与人接近，老鼠具有先天"优势"为人类健康做出贡献。AMONG the many creatures (生物) in the world, mice are surprisingly...," the statement added.HELPgene n. 基因，生物体遗传的基本单位draft n. 草案detail n. 细节amazing adj. 令人惊异的junk DNA: 垃圾DNA ……

who first discovered DNAB. the importance of DNA in human lifeC. how DNA was first discovered D... at that time in the world.B. Franklin's photograph played an important role in Watson's research on DNA.C ……

, and after the flight. They were helping with a NASA project studying how long-term space travel affects....Scott, when he returned to Earth, was a full 5 cm taller than when he left.There were also changes ……

CRISPR技术引领基因革命。IF you could change your child’s DNA in the future to protect them against diseases... involves a piece of RNA, a chemical messenger, designed to work on one part of DNA; it also uses an ……

of DNA to figure out how people moved from one part of the world to another. It issponsoredby... of the DNA chain remain the same through the generations. These changes happen onlyoccasionally(偶尔 ……

implanting (植入) it, the DNA of the recipient (受体) cell is removed. This is how Dolly's life began - from... animal. Before implanting (植入) it, the DNA of the recipient (受体) cell is removed. This is how Dolly ……

implanting (植入) it, the DNA of the recipient (受体) cell is removed. This is how Dolly's life began - from... animal. Before implanting (植入) it, the DNA of the recipient (受体) cell is removed. This is how Dolly ……