01:10
Genetics 101 (Part 5 of 5): Why No Y?
In this video collaboration from Khan Academy and 23andMe, you'll find out why women don't have a Y chromosome. Even with no Y, women can still learn about their paternal ancestry with…
04:21
Genetics 101 (Part 3 of 5): Where do your genes…
Genetics 101 (Part 3 of 5): Where do your genes come from?
In this video collaboration from Khan Academy and 23andMe, you'll learn how chromosomes and genes are passed down from parent to child.
02:52
family Trees in Anvik, Alaska
11:24
American Ancestry Debate Part2
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