Development of New Organisms Flashcards
1
Q
Up to 8 week cell stage, what are all cells in a human embryo?
A
- They are unspecialised
- They can have any gene switched on to form any kind of specialised cell
2
Q
What are these cells known as?
A
Embryonic stem cells
3
Q
After the 8 week cell stage what are cells in an embryo?
A
- They become specialised
- They form different types of tissue
4
Q
What do cells contain?
A
The same genes
5
Q
But what are many of the genes?
A
They’re not active because the cell only produces the proteins it needs to carry out its role
6
Q
In a specialiased what genes are needed?
A
They only genes needed for the cell to function are active as it only requires specific proteins (mainly enzymes)
