The Two People We're All Related To
PBS Eons・2 minutes read
Mitochondria are inherited only from the mother, while the Y chromosome comes from the father, crucial for studying human ancestry and migration patterns. Genetic information from these sources supports the "out of Africa" hypothesis, estimating human lineage splits and suggesting an exit from Africa around 70,000 years ago.
Insights
- Mitochondria, inherited exclusively from the mother, establish a continuous maternal lineage, while the Y chromosome, passed down from the father, traces back to a single male ancestor, making them vital for exploring human ancestry.
- Analysis of mitochondrial DNA mutations aids in categorizing individuals into haplogroups, revealing migration routes; with the majority of haplogroup diversity in Africa, supporting the theory of human origin from Africa around 70,000 years ago, as estimated by the molecular clock.
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Recent questions
How is genetic information inherited?
Through mitochondria from the mother and Y chromosome from the father.
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