View the animation below, then complete the quiz to test your knowledge of the concept.

1	Homologous genes are best described as genes that
	A)	have identical sequences.
	B)	have a common ancestral gene.
	C)	have similar functions.
	D)	are on the same chromosome.
	E)	are on homologous chromosomes.
2	Homologous genes within a single species are said to be
	A)	orthologs.
	B)	paralogs.
	C)	metalogs.
	D)	xenologs.
	E)	homologs.
3	A misaligned cross over between two homologous chromosomes usually results in
	A)	a deletion in one chromosome and no change in the other.
	B)	a deletion in one chromosome and a duplication in the other.
	C)	deletions in both chromosomes.
	D)	duplications in both chromosomes.
	E)	no change in either chromosome.
4	Gene duplications have no effect on evolution.
	A)	True
	B)	False
5	Homologous genes are the result of random mutations accumulated over the course of many generations.
	A)	True
	B)	False