Bacteriophages

Question 1

Bacteriophages: Morphology

Answer 1

• High diversity
• Groups A-G
• NA:
  
  • dsDNA
  • ssDNA
  • dsRNA
  • ssRNA
• Symmetry:
  
  • Binal
  • Icosahedral
  • Helical
  • Pleomorphic

Question 2

Bacteriophages: Biological properties

Answer 2

• Penetration - Special routes
• Species specificity
• Lysogen infection
• Lysogen conversion
• Transduction
• Lytic effect on bacteria

Question 3

Bacteriophages: Examples

Answer 3

• Tbilissi (Tb) phage
• T4 phage
• β phage
• λ phage
• φX174 phage

Question 4

T4 phage

Answer 4

E. coli

Large complicated phage

Question 5

β phage

Answer 5

Corynebacterium diphtheriae conversion → Diptheria

Question 6

λ phage

Answer 6

E. coli

Genetic model virus, marker

Question 7

φX174 phage

Answer 7

E. coli

The smallest known virus