核糖核苷酸

The brain cells containing these mRNA´s can then be isolated and their mRNA´s decoded to determine just what their protein products are and how closely the products resemble the true peptide hormones.

然后，含有这些信使核糖核苷酸的脑细胞就可以被分离开来，研究者可对其信使核糖核苷酸进行解码，以确定它们的蛋白质产物究竟是什么，并确定这些蛋白质产物在何种程度上类似于真正的肽激素。

Enzyme that polymerizes deoxyribonucleotides to make DNA.

将脱氧核糖核苷酸聚合形成DNA的酶。

A covalently linked chain of deoxribonu- cleotides. The double helix is composed of two DNA strands.

脱氧核糖核苷酸以共价键连接起来的链。双螺旋由两条DNA链组成。

The basic unit of DNA is a linear polymer of four different monomeric subunits, deoxyribonucleotides, arranged in a precise linear sequence.

脱氧核糖核酸的基本单位是由四种不同的脱氧核糖核苷酸单一亚单位以精确的线性序列进行排列而构成的线性聚合物。

And the scientists didn´t know either how the polymerase avoids substituting the NTPs that constitute DNA for the correct RNA building blocks, molecules that differ by only one oxygen atom.

但是研究人员不清楚的是聚合酶是怎样避免把构成DNA链的NTP添加到RNA链上的，毕竟脱氧核核苷酸和核糖核苷酸只是相差一个氧原子。