here’s one. true story.
Mr. X is having some medical issues, and needed to find donors for an organ transplant for him. So the docs run a dna match test with the blood of all his immediate relatives aganist his dna. And they found a few potential matches. But they also found his birth mom’s dna test came back showing her not being his mom. His mom was all mad, so they did the test over, and again - her dna said she couldnt be the mom. His dad’s dna matched up perfectly.
Whatappened?
Re: Bio nerd puzzle
Had she recieved a transplant at some point in her life? (not even sure if that would cause this problem) Only thing I can think of is that they had the child through IVF and the wrong egg was fertilised.
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mom's never had any kind of surgery or major procedures done, no transplants. and the guy was conceived naturally on a summer trip to hawaii.
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For some reason Mitochondria springs to my mind 
Or maybe hawaii was a clue hmmm, I might leave this one to someone that has studied biology in the last decade.
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Maybe they used a bollywood style surrogate mom :p
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I remember a news story a while ago about this sort of thing. Its called Chimerism.
‘In human biology, a chimera is an organism with at least two genetically distinct types of cells – or, in other words, someone meant to be a twin. But while in the mother’s womb, two fertilized eggs fuse, becoming one foetus that carries two distinct genetic codes - two separate strands of DNA’
That means the child could be carrying one particular DNA from a particular ‘part’ of the mother.
EDIT: Wikipedia - Chimerism
Re: Bio nerd puzzle
Hai hai yeh to Bollywood movie ka naya plot hai.
Let’s call it: Tumhari maa kon 
or Mey, meri maa, aur woh, or Ek kahani, doh maaein.
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well done, GIDSA!
the mom turned out to be a chimera, sorta like an extreme siamese twin.. her blood and some other systems were from one twin, brain, reproductive system etc from another.
here’s one such case.
Re: Bio nerd puzzle
COOL!!! 
Re: Bio nerd puzzle
here's one. true story.
Mr. X is having some medical issues, and needed to find donors for an organ transplant for him. So the docs run a dna match test with the blood of all his immediate relatives aganist his dna. And they found a few potential matches. But they also found his birth mom's dna test came back showing her not being his mom. His mom was all mad, so they did the test over, and again - her dna said she couldnt be the mom. His dad's dna matched up perfectly.
Whatappened?
is it traditional surrogacy where the surrogate mother goes through the process of artificial insemination using father's sperm. therefore the surrogate mother is biological mother of the baby.
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Queer, that was the exact story I read and referred to! It really is mind boggling 'eh!
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oh already answered.
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Noone like my Bollywood idea :hinna:
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^don’t wrry…they didn’t like my theory either :hinna:
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i did, niksik. i've sent a script to karan johar, and SRK will be playing the mom's role if all goes well.. keep your eyes peeled for "mei tumhare maa banne wali hoon"
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that's fascinating...never heard of it before
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wow! Chimerism! I never knew...
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she ate her twin…
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That was a good question, and a strange answer.
Thanks queer.
Nature never stops surprising.