biology b5 growth and develpment
- Created by: Anna Wood
- Created on: 20-06-13 10:21
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- b5 growth and development part 2
- development of new organisms
- up to 8 cell stage human embryo are
- unspecialised
- can have any gene switched on or on to form any kind on specialised cells
- after the 8 cell stage human embryos are
- becoming specialise
- forming different type of tissues
- up to 8 cell stage human embryo are
- stem cells
- potentially used for
- helping treating diseases
- repairing damage to varous tissues
- there are three source of stem cells
- embryos
- blood from umbilical cord
- adult stem cells from bone marrow
- only embryonic stem cells are unspecialised
- ethical issues
- Christians
- potentially used for
- development of new organisms
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