MDCAT Biology MCQ #22

During an experiment, a T4 bacteriophage fails to attach to an E. coli cell. Which structure is likely defective or missing?

MDCAT Biology MCQ #22

  1. Question 1

    Q1. During an experiment, a T4 bacteriophage fails to attach to an E. coli cell. Which structure is likely defective or missing?

    • A) Capsid head
    • B) Contractile sheath
    • C) Tail fibers
    • D) Tail pins

    Answer: Tail fibers

    Explanation: Tail fibers are responsible for attachment to specific receptor sites; tail pins fail because they only assist in penetration.