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Maternal vs Paternal Lines

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    In this lesson we've learned just a teeny bit
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    more about ways we can trace through our maternal
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    or paternal lines. So in the case of mitochondrial
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    DNA we only inherit that from our mothers. So
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    you can trace your maternal line back through the
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    mitochondrial DNA. The mitochondria have been passed down from
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    generation to generation. From great-great-great grandmother to great-great to
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    great to grandmother to mother to you. Now the
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    same thing is true for the Y chromosome for males.
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    Every male is genetically XY and he had to have
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    gotten that Y chromosome from his father, who got it
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    from his father who got it from his father, who
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    got it from his father, and so this Y chromosome
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    has just been passed down. From generation to generation, through
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    all of the male line. One of the big distinctions
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    here, is that Mitochondrial DNA, everybody has. But the Y
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    chromosome, only males have. We're going to revisit these
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    concepts a little bit later, in lesson seven.
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    When we actually try to trace an individual's
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    lineage, on both his mother's and father's side.
Title:
Maternal vs Paternal Lines
Video Language:
English
Team:
Udacity
Project:
BIO110 - Tales from the Genome
Duration:
01:06

English subtitles

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