Chapter 19

Only _____________ are prokaryotic. a. archaea b. bacteria c. viroids d. a and b are correct

Bacteria transfer plasmids by _________. a. prokaryotic fission b. endospore formation c. conjugation d. the lytic pathway

The ____________ are all oxygen-releasing photoautotrophs. a. spirochetes b. chlamydias c. cyanobacteria d. proteobacteria

The symbiotic \(E .\) coli in your gut are ________________. a. spirochetes b. chlamydias c. cyanobacteria d. proteobacteria

All ______________ are intracellular parasites of vertebrates. a. spirochetes b. chlamydias c. cyanobacteria d. proteobacteria

Some Gram-positive bacteria (e.g., Bacillus anthracis) survive harsh conditions by forming a(n) ______________. a. pilus b. heterocyst c. endospore d.plasmid

DNA or RNA may be the genetic material of _____________. a. bacteria b. a virus c. archaea d. a prion

Bacteriophages can multiply by ___________. a. prokaryotic fission b. the lytic pathway c. the lysogenic pathway d. both b and c

Only ________ reproduce by prokaryotic fission. a. viruses b. archaea c. bacteria d. \(b\) and \(c\) are correct

Match the terms with their most suitable description. ____________archaea ____________bacteria ____________virus ____________plasmid ____________extreme halophile ____________viroid ____________prion a. infectious protein b. nonliving infectious particle; nucleic acid core, protein coat c. salt lover d. prokaryotes that most closely resemble eukaryotes e. most common prokaryotic cells f. small circle of bacterial DNA g. small circle of RNA