Roha125
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How is mitochondrial DNA unique to each individual if mtDNA is only passed from mother.
Mother's mtDNA and child mtDNA are identical, So wouldn't everyones mtDNA be identical in a family.
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Ruhab Dabeer
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(Original post by Roha125)
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How is mitochondrial DNA unique to each individual if mtDNA is only passed from mother.
Mother's mtDNA and child mtDNA are identical, So wouldn't everyones mtDNA be identical in a family.
Can we see the actual question too
If u don't mind
So we know what is going on?
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Roha125
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Np,I actually thought of giving the question but I understood those,only had problems with conflicting ms point
Those other ms points are not regulars
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Jack Southerden
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k den
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Ruhab Dabeer
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(Original post by Jack Southerden)
k den
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Ruhab Dabeer
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(Original post by Roha125)
Np,I actually thought of giving the question but I understood those,only had problems with conflicting ms point
Those other ms points are not regulars
Oh I may have not done this topic yet
Which topic is it from
Is it from Inheritance???
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Jpw1097
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(Original post by Roha125)
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How is mitochondrial DNA unique to each individual if mtDNA is only passed from mother.
Mother's mtDNA and child mtDNA are identical, So wouldn't everyones mtDNA be identical in a family.
You’re right, mitochondrial DNA is inherited from the mother only. All children from one woman will have the same mitochondrial DNA. The question asks how mitochondrial DNA might be used to identify an individual, and the mark scheme states the idea of mt DNA being unique to the individual. It is not saying that mt DNA is unique to each individual, but gives credit to students who state that mt DNA is unique to an individual or siblings or mother and children. The next questions asks why the mt DNA of a child will be the same as its mother, so the examiners are fully aware that mt DNA is not unique to an individual.
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Roha125
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(Original post by Jpw1097)
You’re right, mitochondrial DNA is inherited from the mother only. All children from one woman will have the same mitochondrial DNA. The question asks how mitochondrial DNA might be used to identify an individual, and the mark scheme states the idea of mt DNA being unique to the individual. It is not saying that mt DNA is unique to each individual, but gives credit to students who state that mt DNA is unique to an individual or siblings or mother and children. The next questions asks why the mt DNA of a child will be the same as its mother, so the examiners are fully aware that mt DNA is not unique to an individual.
Thanks
I got it now
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