Over time identical twins not as identical...

[Guest guest]

Apparently identical twins are less identical the older they get.

Here's a link to an article entitled " Even identical twins grow apart

genetically -study " :

http://news./news?tmpl=story & cid=585 & e=1 &

u=/nm/20050705/sc_nm/science_twins_dc

Here's a sample:

" Their study of identical twins show the genetic code itself does not

change, but rather chemical changes after birth alter the way the gene

is expressed, a process known as epigenetics.

:

:

This supports theories that environmental factors, such as smoking,

diet and exercise, affect DNA directly, the researchers said.

It is also possible that, just as DNA mutations occur with simple

aging, the epigenetic effects on genes also " drift " with age, the

researchers said. "

WOW! Pottenger's cat experiments come to mind here...

Jan

[Guest guest]

>It is also possible that, just as DNA mutations occur with simple

>aging, the epigenetic effects on genes also " drift " with age, the

>researchers said. "

>

>WOW! Pottenger's cat experiments come to mind here...

>

>Jan

I also read a fascinating piece in Discover about how

genes get passed on. A female fetus has ALL her eggs

develop while still in the womb. So if the fetus is

in a mom who is say, smoking and drinking, the fetus'

eggs can be altered. And if fact that seems to be

what happens: non-smoking girls who were raised

by a smoking Mom, still have more birth defects in

their kids.

Then of course there is the link between being

gay and having older brothers ... it seems the womb

environment changes with each successive son, so

your " seventh son " (the one that is supposed to

be enchanted in fairy stories!) is rather likely to

be gay, statistically. That would be a clear case

of gene expression, not genes, if in fact the research

bears that out.

Heidi Jean

[Guest guest]

> Here's a sample:

> " Their study of identical twins show the genetic code itself does not

> change, but rather chemical changes after birth alter the way the gene

> is expressed, a process known as epigenetics.

> :

> :

> This supports theories that environmental factors, such as smoking,

> diet and exercise, affect DNA directly, the researchers said.

>

> It is also possible that, just as DNA mutations occur with simple

> aging, the epigenetic effects on genes also " drift " with age, the

> researchers said. "

>

> Jan

Genetic Nutritioneering by Bland of the Human Genome Project says

70% of our genes can alter their expression. Was wondering with the recent

thread on body hair wheather diet altered or reversed my head and body hair

gene. Texture and it seems amount on head has increased back to childhood

hair. Coarseness and growth on body is much less. Shave half as much if not

more. Even a particular single food like and dislike between twins might

make a difference.

Wanita