病毒的语义

最近回答:10/22/2007

问:
病毒是如何形成的呢?甚至是病毒?怎么可能病毒“冻结”本身,使其“解冻”什么?病毒基因最简单形式的“东西”?
——匿名
答:
你问物理学家,生物学家,所以我们只能给出一个答案。我将从最简单的部分。

“病毒甚至生活吗?”That’s purely a matter of what you choose to mean by the word ’living’. Viruses reproduce, evolve etc. However, they cannot do so except inside of some more complete organism, borrowing some of its machinery. It’s not much of a life.

“病毒是最简单的“东西”的基因吗?”They’re the smallest semi-independent genetic reproducers. However, many bacteria have seperate genetic components called ’plasmids’ whose reproduction is not tied directly to the bacterial reproduction. These plasmids can be fairly easily exchanged between different bacteria, even between not very similar bacteria. They’re a major source of evolving and spreading bacterial resistance to antibiotics. So you might say that they’re ’things’ smaller than viruses but with genes.

“病毒是如何形成的呢?”I’m not sure whether you’re asking how different lines of viruses are created (I don’t know the answer) or how each individual virus is created reproductively. The answers to the second question are complicated, depending on whether you’re talking about DNA viruses, retroviruses, etc. A virologist would be able to give a detailed, accurate answer. Also, a virologist might know enough to understand the question about ’freezing’.

至少我希望这能让你开始,虽然远未完成。

迈克·W。

(发表在10/22/2007)

后续在这个答案