Which statement about the genomes of prokaryotes is correct? a. prokaryotic cells have multiple chromosomes, "packed" with a relatively large amount of protein. b. prokaryotic chromosomes are sometimes called plasmids. c. prokaryotic genomes are diploid throughout most of the cell cycle. d. the prokaryotic chromosome is not contained within a nucleus but, rather, is found at the nucleolus. e. prokaryotic genomes are composed of circular dna.