Review the image(s) and answer the following questions.

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1			If, over time, the frequency of the B allele in the population changed to 0.7, what would be the resultant change in frequency of the b allele?
			A)	The b allele would not change in frequency.
			B)	The b allele would eventually disappear.
			C)	The b allele would change in frequency to 0.5.
			D)	The b allele would change in frequency to 0.3.
2			What is the purpose of calculating Hardy-Weinberg equilibrium?
			A)	to determine whether there are changes in the frequency of alleles
			B)	to determine whether there are microevolutionary changes occurring in the population
			C)	to determine whether one allele confers greater fitness than another allele by increasing in frequency
			D)	All of these may be reasons to calculate Hardy-Weinberg equilibrium.

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3			Why is there a correlation between the distribution of the gene for sickle cell and malaria?
			A)	Malaria eventually causes sickle cell disease.
			B)	The gene for sickle cell also confers resistance to malaria.
			C)	People with sickle cell trait are more susceptible to malaria.
			D)	The correlation is a coincidence only.
4			The presence of the sickle cell allele in areas where malaria is prevalent can best be referred to as ______________.
			A)	an adaptation
			B)	coevolution
			C)	a mutation
			D)	a coincidence