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Consider a Trait Determined by a Rare Mutation in Mitochondrial

Question 38

Multiple Choice

Consider a trait determined by a rare mutation in mitochondrial DNA. What is the concordance between identical twins? Between same-sex fraternal twins?


A) identical concordance = 1; fraternal concordance = 0
B) identical concordance = 1; fraternal concordance = 1/4
C) identical concordance = 1; fraternal concordance = 1/2
D) identical concordance = 1; fraternal concordance = 3/4
E) identical concordance = 1; fraternal concordance = 1

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