Core Biology - Cloning AQA

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  • Created by: Krupa
  • Created on: 29-05-13 14:33
Preview of Core Biology - Cloning AQA

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TISSUE CULTURE
1) Take a group of cells from the leave, stem or roots
2) Encourage them to grow by putting them in agar ­ petri dish or a growth medium
3) Put it in by using the aseptic technique (everything is sterile)
4) Small plants grow in the petri dish
5) Then plant them in the soil
6) TAH DAH YOU HAVE LOTS OF CLONES OF THE PARENT PLANTS
Advantages: quick, grow in little space and grow all year
EMBRYO TRANSPLANTS
1) Select parents with the desired characteristics
2) Use fertility hormones on the female
3) Fertilise the eggs and split the embryo apart into individual cells
4) Grow embryos in the lab for a few days
5) Implant embryos into the host mother
Advantages: Ideal offspring's can be produced each year
Disadvantages: People think it's unethical
ADULT CELL CLONING
1) SHEEP/COW WHATEVER (A) remove body cell and then remove DNA
2) SHEEP/COW WHATEVER (B) remove the egg cell and then remove its nucleus
3) DNA from sheep A is fused with egg cell from sheep B
4) Fused cell develop into embryo and put into the uterus of foster mother
Advantages: Could be used to treat several of diseases
CUTTINGS
1) Take cuttings off a good plant
2) Plant them
3) TAH DAH YOU HAVE GENETICALLY IDENTICAL COPIES OF THE PARENT PLANT
Advantages: Quick and cheap

Comments

Excellent resource, thanks :)
Basic steps easy to follow :)
4/5!

Krupa

thanks :)

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