Now a telomere is a highly repetitious and genetically meaningless sequence of DNA, what we were calling junk DNA.

端粒是高度重复的，从基因上来说没有意义的 DNA 序列，我们称之为垃圾 DNA。

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Anyway, if we examine these ends of these coils of DNA, we will find a sequence of DNA at each end of every human Chromosome, called a telomere.

无论如何，如果我们检查这些螺旋状 DNA 的末端，我们会发现每条人类染色体的末端都有一个被称作“端粒”的 DNA 序列。

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The process, known as DNA methylation, is one mechanism of epigenetic change, heritable change that does not alter the sequence of DNA itself.

该过程被成为DNA甲基化，是表观遗传变化的一种，属于不会改变DNA序列的可遗传变化。

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Where does the DNA sequence come from?

我们感兴趣的基因从哪里来

耶鲁公开课 - 生物医学工程探索课程节选

Transcription just means making a single stranded RNA copy of a sequence of base pairs in a DNA.

转录的过程就是从一段DNA碱基序列中,复制出一段单链RNA

耶鲁公开课 - 生物医学工程探索课程节选

When it sees that sequence in a double stranded DNA it will bind there and it will cut.

当它在双链DNA中发现这个序列,就会与之结合并切割

耶鲁公开课 - 生物医学工程探索课程节选

By adding a solution that releases both the plant and the human DNA from the paper, the geneticist can then analyze the DNA for his or her chosen purpose--for example, to look for a mutation in the human DNA sequence--with the rice DNA sitting alongside harmlessly and acting as an ID tag.

FORBES: The DNA Bar Code

Up to 18% of our DNA sequence is involved in regulating the less than 2% of the DNA that codes for proteins, they asserted.

FORBES: Arguing Over Junk: Scientists Attack Each Other as Media Flub 'DNA Story of the Year'

The polymerase chain reaction (PCR) is a scientific technique in molecular biology to amplify a single or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.

FORBES: There is No Great Stagnation