Biology Forum › Genetics › What is the type of inheritance?
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- November 13, 2009 at 3:14 pm #12268
mensamedlemParticipantGreen = 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 recessiveWhy?
- November 13, 2009 at 7:41 pm #94834mensamedlemParticipant
Figure 1: Autosomal dominant
Figure 2: Autosomal recessive
Figure 3: X-linked recessive
- November 14, 2009 at 7:31 am #94850JackBeanParticipant
And half? That’s what? Like half-sick? :-/
- November 14, 2009 at 9:33 am #94852mensamedlemParticipant
Half = healthy carrier.
- November 14, 2009 at 12:53 pm #94855JackBeanParticipant
Why are you asking and answering? 🙄
- November 14, 2009 at 4:00 pm #94858mensamedlemParticipant
Because I am not sure about the correctness of the answers.
- November 14, 2009 at 6:15 pm #94860mensamedlemParticipant
Anyone who can help?
- November 14, 2009 at 7:24 pm #94861DarbyParticipant
Your answers make sense.
- November 14, 2009 at 9:40 pm #94867mensamedlemParticipant
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.
- November 15, 2009 at 1:54 pm #94899JackBeanParticipant
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 😆 - November 15, 2009 at 3:52 pm #94907mensamedlemParticipant
Square = man.
- November 16, 2009 at 6:09 am #94930JackBeanParticipant
That’s not the point 😉 The point is, how can his children be healthy, if he has only bad alleles?
- November 20, 2009 at 12:26 pm #95142mensamedlemParticipant
Thank you!
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