Lac operon monocistronic mutagen nucleotide pathogenicity island
a. rna transcript that carries one gene
b. bacterial dna sequence encoding the proteins required for the degradation of lactose; it serves as one of the most important models for studying gene regulation
c. basic subunit of rna or dna consisting of a purine or pyrimidine covalently bonded to ribose or deoxyribose, which is covalently bound to a phosphate molecule
d. stretch of dna in bacteria encoding virulence factors; appears to have been acquired from other bacteria
e. any agent that increases the frequency at which dna is altered (mutated)