In a Form of Early-Onset Alzheimer Disease Caused by a Mutation

question 50

Multiple Choice

In a form of early-onset Alzheimer disease caused by a mutation on chromosome 14,A is changed to T at the first position of codon 146,which substitutes leucine for methionine.This mutation is a _____ and is _____.

• A)transversion;nonsense
• B)transversion;missense
• C)transition;missense
• D)transition;nonsense

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