-
Gene Splicing
-
cut and paste genes
- GENE SPLICING
-
useful genes
- one chromosome to another
-
insulin production
- human insulin gene
- inserted into bacteria
- produce human insulin
- uses enzymes to remove and splice gene
-
Gene Transfer
-
shortly after fertilisation
- transfer gene
- animals & plants
-
Genetically modified plants (GM)
- virus resistant
-
herbicide resistant
- kills weeds not plant
-
long life tomatoe
- change ripen gene
-
cons
- reduce farmland biodiversity
- affect weeds and flowers therefore wildlife
-
safe?
- allergies?
-
transplanted genes into natural environment
- herbicide resistant gene
- super weeds
-
pros
- increase yield
-
engineer to contain nutrients
- developing countries
- gold rice
- beta carotene
- prevent blindness
- already used elsewhere with no problems
-
animal embryos
-
sheep
-
produce drugs in milk
- treat human disease
-
gene theropy
-
cystic fibrosis
- faulty gene
- insert working gene
-
Advantage
- treat disease
- more efficient food production
-
Fear
- not natural
- create unplanned problems
- defects passed into future generations