Chapter 21 Pre-Test

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Across
  1. 2. / bacteriophage DNA that is embedded in the bacterial host's DNA
  2. 5. infection / type of infection in which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA
  3. 6. / particle made of proteins, nucleic acids, and sometimes lipids that can replicate only by infecting living cells
  4. 7. / disease causing agents
  5. 8. / RNA virus that contains RNA as its genetic information
  6. 9. fission / type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells
  7. 11. / kind of virus that infects bacteria
  8. 12. / protein coat surrounding a virus
  9. 14. / preparation of weakened or killed pathogens used to produce immunity to a disease
Down
  1. 1. infection / type of infection in which a virus enters a cell, makes copies of itself, and causes the cell to burst
  2. 3. / structure produced by prokaryotes in unfavorable conditions; a thick internal wall that encloses the DNA and a portion of the cytoplasm
  3. 4. / process in which some prokaryotes exchange genetic information
  4. 10. / a group of drugs used to block the growth and reproduction of bacterial pathogens
  5. 13. / unicellular organism that lacks a nucleus