Use this pedigree to determine which pairs of family members listed below share mitochondrial dna.
Question: Use this pedigree to determine which pairs of family members listed below share mitochondrial dna.
Mitochondrial DNA (mtDNA) is inherited exclusively from the mother, so only individuals who share a maternal lineage will have the same mtDNA. Based on the pedigree, we can determine that individuals I-1, I-2, II-2, III-2, and III-3 share the same mtDNA, as they are all maternally related. However, individuals II-3, III-1, and III-4 do not share the same mtDNA as the others, as they have a different maternal lineage. Therefore, pairs of family members who share mtDNA include I-1 and I-2, II-2 and III-2, and III-2 and III-3.
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