人类由30亿个核甘酸组成基因组。细菌的情况怎么样呢?细菌大概有几百万个核甘酸组成它的基因组。而病毒的基因组一般只有几千到几万个核苷酸,比如 SARS 病毒只有3万个核甘酸,艾滋病毒还不到1万个核甘酸。所以有人提了个问题：人的基因组由30亿个核甘酸组成,怎么对付不了小小的几千个或者是1万个核甘酸?下面,我就跟大家讨论这个问题。 Humans consist of 3 billion nucleotides in the genome. What about bacteria? Bacteria have about millions of nucleotides that make up its genome. The virus genome generally only a few thousand to tens of thousands of nucleotides, such as SARS virus only 30,000 nucleotides, HIV less than 10,000 nucleotides. So somebody asked the question: how about the human genome, made up of 3 billion nucleotides, that can not deal with a few thousand or 10,000 nucleotides? Let me discuss this issue with you.