Mutations that are lethal in one environment but viable in another are known as:
A) Lethal mutations
B) Conditional lethal mutations
C) Null mutations
D) Isoallele mutations
E) All of these

Question

Quizplus · Accepted Answer

Conditional lethal mutations are mutations that are lethal in one environment but viable in another. Option A is not entirely correct because all lethal mutations do not fall under this category. Option C is incorrect because null mutations are mutations that completely eliminate the function of a gene. Option D is an incorrect term. Option E is incorrect because only one option (B) is correct.

Mutations That Are Lethal in One Environment but Viable in Another