Martin has shown that, of the eukaryotic genes whose ancestry can be traced, 75 per cent or more came from bacteria rather than the host cell.
马丁揭示，在哪些可以追溯到祖先的线粒体基因上，有75%或更多的成分来自当时外来的细菌而非宿主细胞。
2
Chromosome 1 is the biggest and contains, per chromosome, the greatest number of genes.
1号染色体最大，与其他染色体相比来说，含有最大数量的基因。
3
The researchers found a striking 94 per cent similarity in the biochemistry between the two brains, and discovered that at least 82 per cent of all human genes are expressed in the brain.