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Genetics
Gene Expression: How Cells Make Proteins
Description
Gene expression is the process cells use to turn genetic information into functional products. In many cases, that product is a protein made from amino acids. This process is controlled at several stages, and mistakes in control can contribute to diseases such as cancer.
The study of gene express...
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Transcript
基因表达是指细胞DNA中所含信息被用来制造功能性产物的过程。这一精心调控的过程在多个阶段受到调控,调控异常往往会导致癌症等疾病。
本视频概述了基因表达研究的历史、关键科学问题、该领域的主要研究方法以及这些技术的应用现状。
首先,让我们回顾一些关于基因表达的重要发现。
1953年,弗朗西斯·克里克(Francis Crick)和詹姆斯·沃森(James Watson)借助罗莎琳德·富兰克林(Rosalind Franklin)的数据,阐明了DNA的结构——由两条核苷酸碱基链组成的双螺旋结构,其序列具有确定性但可无限变化,由此建立了DNA可...
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