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GATE BT-2017 Answer Key | Solutions Discussion
(02-28-2017, 09:22 PM)SunilNagpal Wrote:
(02-16-2017, 05:26 PM)SãñGáM Mìshra Wrote:
[Image: 6931eb92a4b04caf864f8031fc9dba2d.jpg]
(Right now in a train going back to my home town so pardon the lack of figurative explanation , but i will try my best to put my point of view to the pedigree question. I hope this is the question which everyone is talking about?

To me option B seems the right answer (it can either be an X linked recessive one or only Y linked). Both cases hold good for the given pedigree.

Only Y linked is evidently very much applicable in the entire scenario and hence this is definitely there. Now the problem I see is that most of you are overlooking the fact that the mothers can be non-carriers as well.

xx - Xy (where X is the carrier chromosome) is very much possible in entire pedigree and if the disease is X linked recessive, females will not be affected in the given pedigree.

Will explain further as and when you guys place counter arguments to this case...


Sir, if the mother is not carrier then she must be healthy.. then her sons should also be healthy because from affected father only y chromosome will inherit and X chromosome will inherit from mother.. but in given pedigree all sons are shown affected hence we figured that mother must be a carrier.
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Messages In This Thread
A GATE BT Marks Survey Page - by reviewer21 - 02-28-2017, 05:31 AM
RE: A GATE BT Marks Survey Page - by SunilNagpal - 03-01-2017, 02:09 AM
RE: A GATE BT Marks Survey Page - by CHANDA7 - 02-28-2017, 04:37 PM
GATE BT-2017 Answer Key | Solutions Discussion - by gaurang94 - 02-28-2017, 09:33 PM
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