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GATE BT-2017 Answer Key | Solutions Discussion
(02-28-2017, 09:22 PM)SunilNagpal 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 you are correct, In generation 1, if female is non carrier and father is the only carrier of X linked recessive gene, then the sons in generation 2 will not be effected, and all the daughters will be just the carriers for next generation.

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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
RE: GATE BT-2017 Answer Key | Solutions Discussion - by RahulK - 02-28-2017, 09:42 PM
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