Genteic Control
- Created by: emily3
- Created on: 31-03-14 10:10
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- Genetic Control
- Lactose Absent
- Repressor is free to bind to the operator gene
- lactose ----(b-galactosidase)------> glucose + galactose
- Phenlyketonuria
- Phenlylalanine
- (enzyme1) ------>
- Tyrosine
- (enzyme2) ------>
- intermediate metabolite
- (enzyme3) ------>
- melanin
- (enzyme3) ------>
- intermediate metabolite
- other enzymes ------->
- other metabolites
- e.g thyroxine
- other metabolites
- (enzyme2) ------>
- Tyrosine
- (enzyme1) ------>
- Phenlylalanine
- Lactose Absent
- Lactose Present
- lactose binds to the repressor molecule and inactivates the repressor
- operator able to switch on the structural gene
- b-galactosidase produces by structural gene
- b-galactosidase breaks down lactose
- b-galactosidase produces by structural gene
- operator able to switch on the structural gene
- lactose binds to the repressor molecule and inactivates the repressor
- Operator gene deactivates the structural gene
- Repressor is free to bind to the operator gene
- Productions of b-glactosidase stops
- No energy wasted
- other enzymes ------->
- other metabolites
- e.g thyroxine
- other metabolites
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