My genetic chances of being bald?

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Offline Super Hans

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My genetic chances of being bald?
« on: 09/05/2013 02:09:20 »
This is a statement I pulled from Yahoo answers, is it true?

"The gene for baldness is on the X chromosome. As a guy, you inherited your Y from your dad and your X from your mom. But she inherited one X from her mom and one from her dad. If you got the X that she got from your maternal grandfather, then you will have his pattern of baldness."

Now my maternal grandfather isn't bald, but my dad is. I look a lot like my dad I'm just hoping I didn't inherit his bald gene.

Is the statement true?

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Offline damocles

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Re: My genetic chances of being bald?
« Reply #1 on: 10/05/2013 00:09:25 »
It is certainly true that the original questioner is hoping that he didn't inherit his father's bald gene! [;D]

The rest of the answer is certainly also true, provided that the father's baldness is genetic in origin. There is a proviso for other causes of baldness, e.g. psoriasis, which might have a completely different genetic pattern.

http://www.psoriasis.org/about-psoriasis/science-of-psoriasis
1 4 6 4 1
4 4 9 4 4     
a perfect perfect square square
6 9 6 9 6
4 4 9 4 4
1 4 6 4 1

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Offline CliffordK

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Re: My genetic chances of being bald?
« Reply #2 on: 11/05/2013 22:15:37 »
It sounds like the baldness hereditary is complicated, and likely involves several genes.

There is a strong link to generation skipping on the maternal line (X Chromosome).  So, if your maternal grandfather was bald, your mother would carry the bald gene, and you would get a 50/50 chance of inheriting it.

However, notes indicate that a person also has a 2.5x greater chance of going bald if the father is bald, and perhaps also the paternal grandfather.  I'm not seeing the exact numbers.

I'm not sure how X-Chromosome inactivation affects the baldness genes in women.

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Offline Super Hans

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Re: My genetic chances of being bald?
« Reply #3 on: 12/05/2013 00:33:16 »
Thanks for your replies. My Dad's brother isn't as bald as my dad, so I'm holding out some hope he was just a bit unlucky!

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Offline CliffordK

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Re: My genetic chances of being bald?
« Reply #4 on: 14/05/2013 21:22:13 »
What about your paternal grandfather?
Or your maternal grandfather?

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Offline imatfaal

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Re: My genetic chances of being bald?
« Reply #5 on: 21/05/2013 18:09:12 »
Have to say that i have the same pattern of shiny-headedness as my maternal uncles and maternal grandfather!  My father (and paternal grandfather whislt he was alive) has far more hair than I or one of my elder brothers
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