" The coronavirus mutates just like any good RNA virus should, " added Mark Schleiss, a molecular genetics expert.

" 冠状病毒突变和其他任何正常的RNA病毒一样，" 马克·施莱希补充道，他是分子遗传学专家。

Which is perhaps surprising considering molecular genetic researcher Lotti Tajouri has put it: “Viruses are the most common biological entities on Earth.”

这或许令人惊讶，因为分子遗传学研究者 Lotti Tajouri 曾说过：“病毒是地球上最常见的生物实体”。

The simple explanation of molecular genetics involves four genetic " letters" .

分子遗传学的简单解释涉及四个遗传“字母”。