Biology, 29.07.2020 17:01 zitterkoph
A partial diploid E. coli cell has this genotype LacI-s LacO-c LacZ+ LacY- / LacI+ LacO+ LacZ- LacY+. Which of the following predictions about the expression of LacZ or LacY of this E. coli strain is right?
(+: wild type; -: null mutant; c: constitutive; s: super suppressor)
A) LacZ will never be expressed (or always be repressed)
B) LacZ will be constitutively expressed
C) LacY will be constitutively expressed
D) LacY will be expressed upon induction by lactose (or analogs of lactose such as IPTG)
Answers: 3
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A partial diploid E. coli cell has this genotype LacI-s LacO-c LacZ+ LacY- / LacI+ LacO+ LacZ- LacY+...
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