The graphs below show the frequency of the b+ allele over twenty generations in two populations of heterozygous flour beetles (data for a population of ten individuals is shown in graph A; data for a population of one hundred individuals is shown in graph B). Why does the frequency of the b + allele increase in both populations?
A)b+ is a lethal allele
B)b+ is a balanced polymorphism
C)b+ is a fixed allele
D)the b+ allele is adaptive
E)b+ is a neutral mutation

Question

The graphs below show the frequency of the b+ allele over twenty generations in two populations of heterozygous flour beetles (data for a population of ten individuals is shown in graph A; data for a population of one hundred individuals is shown in graph B). Why does the frequency of the b + allele increase in both populations? 
A)b+ is a lethal allele 
B)b+ is a balanced polymorphism 
C)b+ is a fixed allele 
D)the b+ allele is adaptive 
E)b+ is a neutral mutation

Quizplus · Accepted Answer

The Answer of The graphs below show the frequency of the b+ allele over twenty generations in two populations of heterozygous flour beetles (data for a population of ten individuals is shown in graph A; data for a population of one hundred individuals is shown in graph B). Why does the frequency of the b + allele increase in both populations? 
A)b+ is a lethal allele 
B)b+ is a balanced polymorphism 
C)b+ is a fixed allele 
D)the b+ allele is adaptive 
E)b+ is a neutral mutation

The Graphs Below Show the Frequency of the B+ Allele