B1
- Created by: zpeachey21
- Created on: 26-05-16 19:36
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- B1
- Clones
- Clones are geneticaly identical organisms
- Natural Clones are created by asexual reproduction
- Identical twins form when a fertilised egg splits creating 2 geneticaly identical organisms
- Stem Cells
- Embryonic
- Found In Embryos, They can be used to make anything, they are taken from embryos that are then destroyed
- Adult
- Unspecialised cells, used to maintain and repair old flesh removed from bone marrow
- Embryonic
- DNA
- DNA contains a persons genome
- Sex cells only have half the amount of DNA
- There are 23 pairs of chromosomes in DNA
- Genes
- Genes are codes for making proteins
- Genes are switches that are either turned on or off
- A persons genes code for what they will look like
- Genetic Testing
- Used to identify if a carrier has a genetic disorder
- Detects Cystic Fibrosis and huntingtons disease
- Genetic testing isnt always 100% accurate
- There are many ethical issues surrounding genetic testing
- e.g Discrimination false positives with results playing god religion
- Variation
- Variation in cells is caused by DNA
- Variation is genetic mutation often so the species can survive
- Inheritance
- A persons genes are inherited from their parents,half from mum half from dad
- 23 chromosomes from each parent
- Clones
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