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41. Which of the following is CORRECT about a prokaryotic genome?
circular chromosome
42. If you knew the sequence of nucleotides within a genc, which one of the following could you determine with the most accuracy?
the primary structure of the protein
43. Type of plasmid that likely changed non-pathogenic Streptocous pneumoniae into a disease-causing strain during Frederick
Griffith's 1920 transformation experiments.
Virulence plasmids
44. Nisin is an antimicrobial peptide that is produced by bacteria in the genus Lacocous in an effort to kill competing bacteria, but is also used as a food preservative. What type of plasmid is the likely source of the gene encoding nisin?
Bacteriocins plasmids
45. When undergoing DNA replication, a prokaryote will have
a single origin of replication on a circular chromosome.
46. The process indicated by the arrow in the figure below represents
leading strand synthesis
47. Which of the following statements accurately describes DNA synthesis?
Synthesis of the leading and lagging strands occur simultaneously.
48. DNA replication always proceeds in only one direction because the _______ of the incoming nucleotide is attached to
the free _______ of the growing DNA strand.
5'-phosphate ... 3'-hydroxyl
49. Which of the following is the best description of a gene?
a segment of DNA that is transcribed into an mRNA, a tRNA, or an rRNA
50. Many pharmaceutical drugs specifically inhibit transcription in Bacteria but not Archata or Eukarya. Why would drugs that
inhibit transcription only affect Bacteria and not Archaea even though they are both prokaryotes?
Archaca and Eukarya have very similar RNA polymerases that are different than bacterial RNA polymerases.