Question
Describe how complementation analysis can be used to reveal whether two mutations are in the same or in different genes. Explain why complementation analysis will not work with dominant mutations.
Step 1
Complementation analysis is a genetic technique used to determine whether two mutations that produce a similar phenotype are in the same gene or in different genes. This is typically done by crossing two organisms, each carrying one of the mutations, and observing Show more…
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3) Complementation analysis can only be conclusive for recessive mutations. Explain why this is so. What would happen if you tried to use complementation analysis when one of your mutants was dominant?
Two different mutations in the same gene can sometimes complement one another, referred to as intragenic complementation. Alternatively, mutations in two separate genes might not complement one another, referred to as non-allelic non-complementation. For each of these scenarios, identify and explain the underlying mechanism behind these events.
Describe the differences between genetic complementation and recombination as they relate to the detection of wild-type lysis by a mutant bacteriophage.
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