Epigenetics is the study of how your environment can chemically modify your genes.

表遗传学是一门研究环境如何通过化学的方式改变基因的学科。

Methylation is a naturally occurring epigenetic - or gene altering - process that chemically modifies the DNA and is critical in the development of every organism.

甲基化是一种自然出现的基因改变过程，能在化学方面修改DNA，对每种生物体的发育来说至关重要。

Rather, they cover isolated forms of the genes, which have been identified, snipped from the genome and chemically modified to make them analysable in a laboratory.

恰恰相反，专利涉及的是这些基因的分离基因，已被测定的分离基因是从基因组中剪切出来经化学方法修饰后可用于实验室实验分析的一类基因。

The work is practicable since they chemically modified these amino acids and peptides at their ends so they form a super-cooled liquid before decomposition, according to the study published on Saturday in the journal Science Advances.

根据周六发表在《科学进展》杂志上的这项研究，这项工作是可行的，因为它们对这些氨基酸和肽的末端进行了化学修饰，以便在分解前形成过冷的液体。