BIO by M Tahir ( Lecturer Al Azhar ) virus chapter
nmdcat.online July 11, 2026

The characteristic feature of bacteriophages that facilitates injection of nucleic acid into bacteria is the

A. Lipid envelope
B. Tail sheath and tail tube
✓
C. Envelope glycoproteins
D. Ribosomal proteins

📝 Explanation

The contractile tail sheath helps inject viral DNA through the bacterial cell wall into the host cytoplasm.

📖 Additional Information

  • Lipid envelope
  • Tail sheath and tail tube
  • Envelope glycoproteins
  • Ribosomal proteins

The contractile tail sheath helps inject viral DNA through the bacterial cell wall into the host cytoplasm.

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