B2.3.1—Differentiation after fertilization Topic Practice
B2.3.1—Differentiation after fertilization Topic Practice
Practise explaining differentiation after fertilisation through signalling gradients, selective gene expression and evidence from protein differences.
How this is tested
- explain how signalling gradients can cause an unspecialised cell to differentiate
- link different cell types to expression of some genes and suppression of others
- interpret protein analysis as biochemical evidence that cells have differentiated