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Multiple Choice
What type of mutant is necessary to study lethal mutants?
A
Non-lethal mutation
B
Conditional Mutation
C
Sensitive Mutation
D
Epistatic Mutation
Verified step by step guidance
1
Understand the concept of a lethal mutation: A lethal mutation is one that leads to the death of an organism or cell, making it impossible to study the effects of the mutation in a living system.
Recognize the need for a type of mutation that allows the organism to survive under certain conditions, so that the effects of the mutation can be studied without causing death.
Learn about conditional mutations: These are mutations that result in a phenotype only under certain environmental conditions. This allows researchers to study the mutation's effects by controlling the environment.
Consider temperature-sensitive mutations as an example of conditional mutations: These mutations may cause a lethal phenotype at one temperature but allow normal growth at another, non-permissive temperature.
Conclude that conditional mutations are necessary to study lethal mutants because they allow researchers to control when the lethal phenotype is expressed, enabling the study of the mutation's effects without killing the organism.