Biology Acellular Life SZABMU 2024
PMDC Verified Question 12 of 70
The side of sheath which is attached to head of bacteriophage is called:
A
Capsid
B
End plate
C
Core
D
Collar
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Collar
Concept:

Complex bacteriophages (like T-even phages) have distinct mechanical parts designed for stability and genome delivery.

Solution:

  • The head of the bacteriophage (containing the DNA) is connected to the contractile tail sheath by a distinct neck-like structure known as the collar.


Why other options are incorrect:

  • Capsid: The head itself.
  • End plate (Base plate): Located at the absolute bottom of the sheath, attaching to the tail fibers.
  • Core: The central hollow tube inside the sheath.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

Previous Question All Acellular Life MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App