How related are you to a random stranger, and how would we go about figuring that out?
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Meiosis and Formation of Eggs and Sperm
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App to prevent 'accidental incest' proves a hit with Icelanders
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"The risk of Icelanders accidentally sleeping with a relative is apparently high enough to justify the creation of a smartphone app to help prevent it."
1 in 200 men direct descendants of Genghis Khan
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"In 2003 a groundbreaking historical genetics paper reported results which indicated that a substantial proportion of men in the world are direct line descendants of Genghis Khan."
Genetic Similarities Within and Between Human Populations
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"The proportion of human genetic variation due to differences between populations is modest, and individuals from different populations can be genetically more similar than individuals from the same population."
Relatedness
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"Help! I cannot seem to grasp why siblings are said to be 50% alike genetically when humans are said to be, say, 85% the same genetically as mice."
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