The indispensable ally
Develop and test models that support and orientate research
Acquire a novel and more global vision of the life sciences
Web page for human insulin in the ‘UniProtKB/Swiss-Prot’ database
Phylogenetic tree or tree of life
A DNA chip
fragments appear as luminous spots of variable intensity on this chip. Thanks to specialised programs – such as ‘GeneChip Operating Software’ – it is possible to quantify a ’s activity in a , in a given (liver, intestine…), at a given moment (embryo, adult…) and in a given state (ill, healthy…). chips are used in biological research to simultaneously measure the expression of thousand of .