What kind of inheritance pattern is this?

Genetics as it applies to evolution, molecular biology, and medical aspects.

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mensamedlem
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What kind of inheritance pattern is this?

Post by mensamedlem » Sat Oct 24, 2009 6:51 am

a) Autosomal recessive
b) Autosomal dominant
c) X-linked recessive
d) X-linked dominant

Squares = males. Circles = females.
Yellow = sick. Green = healthy.

http://www.flickr.com/photos/[email protected]/4021842360/

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JackBean
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Post by JackBean » Sat Oct 24, 2009 11:51 am

If it was X-linked, it must be recessive, because there is female on left, whose mother is healthy.
But it can't be X-linked, because 7 is ill, while her father is healthy, so it must be autosomal dominant ;)
(so, the male at I is probably homozygot, or his children are just not lucky ones ;) so his children are heterozygotes and thus half of their children is ill (their partners are healthy homozygotes))
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

mensamedlem
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Re:

Post by mensamedlem » Sat Oct 24, 2009 12:34 pm

Thank you!

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