Gene determined behaviour and gender

[JustinWyllie]

Hi

 

This is a beginner question.

 

I'm interested in ADHD though the question is a general one.

 

For example, the Cardiff genome study, found a genetic correlation to ADHD behaviours. But they also found that this genetic factor was equally present in boys and girls.

 

Could there be a genetic factor for ADHD which boys carry more than girls? I understand that this may be the case if the genetic factor in question is on the X-chromosome. Is there any other case where this could be the case?

 

Many thanks

 

--Justin Wyllie

[dmaiski]

Hi

 

This is a beginner question.

 

I'm interested in ADHD though the question is a general one.

 

For example, the Cardiff genome study, found a genetic correlation to ADHD behaviours. But they also found that this genetic factor was equally present in boys and girls.

 

Could there be a genetic factor for ADHD which boys carry more than girls? I understand that this may be the case if the genetic factor in question is on the X-chromosome. Is there any other case where this could be the case?

 

Many thanks

 

--Justin Wyllie

 

 

yes although technicaly it would not be pureley genetic...

 

genetic impringting, the inherited methylation paterns on DNA, can cause genes to behave diferently. if these methylation patterns are present on specific alleles it may cause ADHD and many other traits, but this is dependent on the parent the particulare allele originates from and not the actual DNA code.