Genome projects allow the base sequences of whole genomes to be compared between species. The table shows the percentage of the genome that each species shares with humans.
| Species | Percentage of genome shared with humans |
|---|---|
| Chimpanzee | 98.8 |
| Mouse | 85 |
| Zebrafish | 70 |
Using the table, deduce which of these species is the most closely related to humans.
[1]
Explain why comparing genome base sequences gives better evidence of how closely species are related than comparing their appearance.
[2]
Suggest one other use of comparing the genomes of different species.
[1]