Timeline for Can someone help me with this Pedigree Analysis?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 1, 2017 at 4:29 | history | tweeted | twitter.com/StackBiology/status/836795456973901825 | ||
| Feb 21, 2017 at 17:37 | vote | accept | Abhinav Kochhar | ||
| Feb 20, 2017 at 21:38 | comment | added | Don_S | Looking through the table you provided, X-linked recessive trait seems the most plausible, since almost all of the conditions are precisely fulfilled. The only one that seems to challenge this conclusion is number 4: "is never passed from father to son". This is tricky because of the relationship between no. 4 and no. 7. However, this doesn't necessarily rules out X-linked recessive, since it is possible that no. 7's mother (no. 3) is a carrier and no. 7 got a defective X chromosome from her. We don't have her history, but this is possible and makes X-linked recessive a plausible option. | |
| Feb 20, 2017 at 21:18 | answer | added | Koen vd H | timeline score: 4 | |
| Feb 20, 2017 at 15:24 | review | Close votes | |||
| Feb 24, 2017 at 1:19 | |||||
| Feb 20, 2017 at 15:08 | comment | added | Tyto alba | I would suggest you to consult your teacher because it is next to impossible to explain in a written Q&A format. Besides there are a number of ways this is taught, learning from more than one source will actually confuse you. | |
| Feb 20, 2017 at 15:02 | comment | added | Tyto alba | The rule is you have to see 1st if the pedigree obeys Y-liked inheritance, if not then whether dominant/recessive. Once you figure out that (say it turned out to be recessive) see if it obeys X-linked or not. If it does the pedigree shows X-lined(recessive) trait. If it doesn't then it is autosomal and applying the genotypes you'll see there's no conflict and it obeys Autosomal inheritance for sure. The list of characters they are not always true for all pedigree charts, you'll find some matching while others may not. | |
| Feb 20, 2017 at 14:35 | comment | added | Abhinav Kochhar | @Remi.b Yes ... and the darkened ones are the affected ones | |
| Feb 20, 2017 at 14:34 | comment | added | Remi.b | It is both possible that the trait is x-linked recessive and autosomal recessive. If autosomal recessive, that would require individual 12 to be heterozygous though. | |
| Feb 20, 2017 at 14:30 | comment | added | Remi.b | Are squares males and circle females? | |
| Feb 20, 2017 at 13:53 | review | First posts | |||
| Feb 20, 2017 at 14:02 | |||||
| Feb 20, 2017 at 13:49 | history | asked | Abhinav Kochhar | CC BY-SA 3.0 |