Gene Regulation In Prokaryotes - Lactate Flashcards
1
Q
Lactate
A
Indictable operon
2
Q
Genes
A
lacZ, lacY, lacA,
3
Q
Repressor active when…
A
…lactose is absent
4
Q
When lactose is absent…
A
…the repressor binds to operators and turns of the operon
5
Q
When lactose is present…
A
…the lac repressor becomes inactive, allows operon activation
6
Q
Allolactose induction
A
Isomer of lactose, binds to repressor, derepressing the operon
7
Q
Outcome
A
Inactive repressor cannot bind to operator, genes transcribed and translated for lactose metabolism
