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What is the type of inheritance?

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

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What is the type of inheritance?

Postby mensamedlem » Fri Nov 13, 2009 3:14 pm

Green = healthy. Pink = sick.

Figure 1: http://www.flickr.com/photos/44610661@N04/4100876940/

Figure 2: http://www.flickr.com/photos/44610661@N04/4100878606/

Figure 3: http://www.flickr.com/photos/44610661@N04/4100881254/

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

Why?
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Postby mensamedlem » Fri Nov 13, 2009 7:41 pm

Figure 1: Autosomal dominant

Figure 2: Autosomal recessive

Figure 3: X-linked recessive
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Postby JackBean » Sat Nov 14, 2009 7:31 am

And half? That's what? Like half-sick? :-/
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby mensamedlem » Sat Nov 14, 2009 9:33 am

Half = healthy carrier.
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Postby JackBean » Sat Nov 14, 2009 12:53 pm

Why are you asking and answering? :roll:
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Postby mensamedlem » Sat Nov 14, 2009 4:00 pm

Because I am not sure about the correctness of the answers.
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Postby mensamedlem » Sat Nov 14, 2009 6:15 pm

Anyone who can help?
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Postby Darby » Sat Nov 14, 2009 7:24 pm

Your answers make sense.
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Postby mensamedlem » Sat Nov 14, 2009 9:40 pm

Are my definitions correct?


Figure 1: http://www.flickr.com/photos/44610661@N04/4100876940/

Explanation: It is autosomal dominant. Both sexes transmit the trait to their offspring. Affected offspring must have an affected parent unless they posses a new mutation. Unaffected parents do not transmit the trait.

Figure 2: http://www.flickr.com/photos/44610661@N04/4100878606/

Explanation: It is autosomal recessive. Trait tend to skip generations. Affected offspring are usually born to unaffected parents.

Figure 3: http://www.flickr.com/photos/44610661@N04/4100881254/

Explanation: It is x-linked recessive. Affected sons are usually born to unaffected mothers, thus the trait skips generations. It is never passed from father to son.
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Postby JackBean » Sun Nov 15, 2009 1:54 pm

2) if the squere (sorry, don't remember, whether it's man or woman), is recessive homozygote, how that it's children are not carriers?
Unless it's not man and these are actually not his children :lol:
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Postby mensamedlem » Sun Nov 15, 2009 3:52 pm

Square = man.
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Postby JackBean » Mon Nov 16, 2009 6:09 am

That's not the point ;) The point is, how can his children be healthy, if he has only bad alleles?
http://www.biolib.cz/en/main/

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