In humans, the amy1 gene produces the enzyme amylase in cells of the salivary glands. amylase breaks down starch (a polysaccharide) into the sugar maltose (a disaccharide). people from cultures with diets high in starch produce more amylase than people from cultures with diets low in starch because of a mutation in the amy1 gene. explain in two to three sentences why the frequency of this amy1 mutation would have increased in frequency in populations with a high starch diet.

so whats the answer

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.