A major focus of the Human Genome Project is the development of sequencing schemes that are faster and more economical.
| Comparative Sequence Sizes | (Bases) |
|---|---|
| (yeast chromosome 3) | 350 Thousand |
| Escherichia coli (bacterium) genome | 4.6 Million |
| Largest yeast chromosome now mapped | 5.8 Million |
| Entire yeast genome | 15 Million |
| Smallest human chromosome (Y) | 50 Million |
| Largest human chromosome (1) | 250 Million |
| Entire human genome | 3 Billion |