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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