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how to differentiate male vs female allele


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5 replies to this topic

#1 lyok

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Posted 15 November 2011 - 05:20 AM

Hallo all,

I am wondering how you can make a distinction between male and female inherited genes.

I have a figure (too bad no extra information giving with this figure) that shows the difference between male and female gene (its the same gene).
How can this be possible of the gene is the same?

Is this due to mutations on the gene (lets say that the male gene has a mutation) or?

And how do they know wich one is the male and which one is the female? I am assuming they can only do this if they also check the parents their DNA, right?

#2 bob1

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Posted 15 November 2011 - 03:06 PM

X and Y chromosomes...

#3 lyok

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Posted 15 November 2011 - 11:17 PM

X and Y chromosomes...


Nono, its a gene sequence on another chromosome!

Its a certain gene sequence taken from another chromosome and how can I tell which is from the mother and which is from the father.

#4 bob1

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Posted 16 November 2011 - 02:44 PM

Yeah, in that case, you will need to know the parental sequence.

#5 hobglobin

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Posted 17 November 2011 - 10:48 AM

or as you wrote in the title on the parental alleles and then look how they distribute or if they are gender related. Anyway usually genes occur in both genders if they are not on allosomes. I wonder if different gene types (different alleles or sequences) of males and females exist on other chromosomes (autosomes), never heard of that.
Another possibility would be mtDNA (from mitochondria) that is usually only inherited from females.
One must presume that long and short arguments contribute to the same end. - Epicurus
...except casandra's that belong to the funniest, most interesting and imaginative (or over-imaginative?) ones, I suppose.

#6 lyok

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Posted 20 November 2011 - 05:09 AM

I see.
It is as I suspected then.

The question was related to imprinted genes.
=> why certain genes are active and why some are not. And it was about autosomal genes.
+ also on how you could see this certain genes were from the mother or the father.
So you had to know how to see if it was a gene from the mother or father...




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