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cell division (Stem cells (In animals disease (Treat diseases e.g…
cell division
Stem cells
In animals disease
Treat diseases e.g paralysis
Grow new organs for transplants
Plants
Save endangered plants
Clone plants to get good characteristics
Problems
Can cause cancer
Research is expensive
Ethical reasons
Can be rejected
Future
stem cells can be found in the umbilical cord and placenta
Therapeutic cloning
cell cycle
growth
repair
46 chromosomes in human nucleus
1) Dna Replication
2) Nucleus divides- Mitosis
3) Cell membrane and cytoplasm divide
2 Identical daughter cells
Differentiation
When a stem cell becomes a specialised cell
Stem cell- A cell with no function
Animals
- occurs during embryo development
Differentiation is permanent
Plant
- All throughout their live as meristems make stem cells Differentiation is not permamnent