03-04-2017, 05:04 AM
(03-04-2017, 04:22 AM)rizviaijaz08 Wrote:(03-02-2017, 05:15 PM)masthanbasha Wrote: the google image of y linked inheritence as same as given question and u r explanation also perfect and the three questions are very meanful for challenge
The given pedigree analysis can’t be x linked recessive due to following reasons-
- X linked recessive is passed from mother to son and never from father to son. (1)
- For the given pedigree to be x linked recessive the mother in first progeny has to be carrier but in that case they should have 1 carrier daughter, 1 healthy son, 1 affected daughter, and 1 affected son which is not the case.(2)
- For all the affected males the disease is being passed on to the son and for that to happen all the females , even ones who married the affected sons (marked as 6 and 9 in the attached file) have to be carrier. Chances for that are very low.
- The given pedigree is a classic case of Y linked inheritance for the disease Hairy ears and Retinitis pigmentosa(3)
References
and the cytokinesis inhibition one was the cplchicine correct answer for it