4a. Missense mutation occurs in DNA segment of E. coli and causes changes of lacZ gene in lac operon. Explain the mechanism of lac operon in the presence of lactose for this mutated E. coli

b - the respond is innate and varies over time.

good luck!

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.