Biology, 12.12.2019 20:31 rivasalejandro854
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.
Answers: 1
Biology, 21.06.2019 22:00, lazavionadams81
Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.
Answers: 2
Biology, 22.06.2019 01:30, makennahudson94
All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.
Answers: 1
Biology, 22.06.2019 03:00, pineapplepizaaaaa
What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.
Answers: 1
In humans, the amy1 gene produces the enzyme amylase in cells of the salivary glands. amylase breaks...
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