In fruit flies, the allele for ebony body color is a nonlethal, recessive mutation. The table below shows the number of ebony and brown fruit flies, over several generations, in a population for which only the ebony and brown alleles are present.

Generation

Brown body

Ebony body

1

490

4

2

857

7

3

612

5

4

367

3

5

980

8

Is evolution occurring in this population? Explain your answer, using the Hardy-Weinberg equation.

Question

In fruit flies, the allele for ebony body color is a nonlethal, recessive mutation. The table below shows the number of ebony and brown fruit flies, over several generations, in a population for which only the ebony and brown alleles are present.

Generation
	

Brown body
	

Ebony body

1
	

490
	

4

2
	

857
	

7

3
	

612
	

5

4
	

367
	

3

5
	

980
	

8


Is evolution occurring in this population? Explain your answer, using the Hardy-Weinberg equation.