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.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

i think the answer is 95 hope this