protein mutant (4 pts) You decide to take samples of E. coli from the gut of aff
ID: 280343 • Letter: P
Question
protein mutant (4 pts) You decide to take samples of E. coli from the gut of affected sea lions to analyze the lac operon structures. 1) (2 pts) Based on your knowledge of how the lac operon works and the mutations caused by chemicals in the water and the fact that the sea lions have low levels of glucose, which mutation type(s) do you expect to find in the cells? a. ANSWER (2 pts) From Part A above, explain how this type of mutation (s) in E. coli in gut flora could lead to symptoms of weakness, lethargy, and even death, that the scientists observed. b. ANSWER:Explanation / Answer
1. Lac operon is a cluster of three structural genes along with its control elements and translation of these three genes are required for lactose metabolism. But chemics may mutate the inhibitor or regulator protein and which remain bound to operator even in presence of lactose.
1b. These mutation affact the lactose metabolism and energy production is lowered which causes all these symptoms.
2. Chemical causes mutations and which inhibit lactose metabolism and causes death.
3. Some pupsphave not adverse effect because they may have mutation in CAP site and CAP-cAMP complex is more stable.
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