When mutations involve vital functions so that the mutants are nonviable, it is a

Review the verified answer and explanation for this DemoPaper-Pakistan past-paper question on CampusFin.

When mutations involve vital functions so that the mutants are nonviable, it is a Answer: Lethal mutation

Question context

This question is part of 🦠 Microbiology within the broader 🧬 Medical Science subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.