Stephen said, and we'll skip the obligatory sexist joke for now, There
is also a less exotic example of mosaicism than true
hermaphroditism. Only one of the pair of X-chromosomes found in every
somatic cell of normal women functions, the other being randomly X-
inactivated. This means that a
This one, I hope will prove less controversial than the What is a Jew?
thread I inadvertently started. Who knew?
Ed Pollak said:
As I suspected, something not mentioned in the NYT article is the fact
that these copy number variations (CNVs) represent a genetic mosaic. They
exist only in some
On 18 March 2008 Chris Green wrote:
Have you been teaching your students that identical (monozygotic)
twins have identical genes? Turns out that's not correct. See this NYT
article:
http://tinyurl.com/33m4c3
To which Tim responded:
[...] An important difference, yes. But a *big* difference? :)
[EMAIL PROTECTED] wrote:
As for Chris's posting of the NY Times article on genetic differences
between MZ twins, it seems to me (if I've got the logic right) that it
carries with it an important conclusion for the use of twin studies in
psychology.
When considering characteristics of MZ
On 19 Mar 2008 at 8:57, Christopher D. Green wrote:
It's a whole new game out there and our old claims about the effects of
genes will soon look very much like our old claims about the effects of
phrenology -- based on a deep misunderstanding of the ways in which
things actually work.
As I suspected, something not mentioned in the NYT article is the fact that
these copy number variations (CNVs) represent a genetic mosaic. They exist only
in some tissues and not in others and represent copy errors during embryonic
development.
Something analogous is responsible for true
At 9:48 AM -0500 3/19/08, [EMAIL PROTECTED] wrote:
On 19 Mar 2008 at 8:57, Christopher D. Green wrote:
It's a whole new game out there and our old claims about the
effects of genes will soon look very much like our old claims
about the effects of phrenology -- based on a deep
At 10:35 PM -0500 3/18/08, [EMAIL PROTECTED] wrote:
On 18 Mar 2008 at 20:50, FRANTZ, SUE wrote:
I'm surprised that the article mentioned repeats without mentioning
Huntington's disease.
Speaking of which, there's a new and rather unusual article on the topic:
Ringman, J. (2007). The
In shared the NY Times article with a colleague from our biology department and
received this response. I thought it interesting enough to share with this
group...
Interestingly, I had been told this by a researcher some years ago, but could
never find confirmation in texts. He said that a
Olha so esta!
- Original Message -
From: Joan Warmbold
To: Teaching in the Psychological Sciences (TIPS)
Sent: Tuesday, March 18, 2008 10:11 PM
Subject: Re: [tips] Identical twins?
Keep in mind that schizophrenia is also influenced by the amount of stress
a child
[EMAIL PROTECTED] wrote:
On 19 Mar 2008 at 8:57, Christopher D. Green wrote:
It's a whole new game out there and our old claims about the effects of
genes will soon look very much like our old claims about the effects of
phrenology -- based on a deep misunderstanding of the ways in
; history and
systems
You can't teach an old dogma new tricks. Dorothy Parker
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Mon 3/17/2008 10:50 PM
To: Teaching in the Psychological Sciences (TIPS)
Subject: [tips] Identical twins?
Have you been teaching your
At 2:50 AM -0500 3/18/08, Shearon, Tim wrote:
Chris- It is interesting indeed. But, truth be told, I don't really
feel that I understand it - certainly not from what is presented
here. I haven't read the research (oops. Another press conference
before the article?)- if I can! I think it would
Chris-
This certainly seems interesting and could help explain a lot of
puzzling differences that we sometime see in identical (e.g. one
develops schizophrenia and one does not, one ends up gay and the other
straight etc.) Since this is not my field I'm not completely sure how to
Keep in mind that schizophrenia is also influenced by the amount of stress
a child experiences in early childhood. I'm an identical twin and our
early experiences differed significantly as one became the dominant one as
well as more outgoing than the other--such being my twin (Jean--get it,
Jean
I'm surprised that the article mentioned repeats without mentioning
Huntington's disease.
See this story for example:
http://query.nytimes.com/gst/fullpage.html?res=9501E4DD1630F93BA25750C0A9619C8B63
As interesting as this finding is, epigenetics still leads, in my mind, as
having the
On 18 Mar 2008 at 20:50, FRANTZ, SUE wrote:
I'm surprised that the article mentioned repeats without mentioning
Huntington's disease.
Speaking of which, there's a new and rather unusual article on the topic:
Ringman, J. (2007). The Huntington disease of Woody Guthrie: another man
done
Have you been teaching your students that identical (monozygotic) twins have
identical genes? Turns out that's not correct. See this NYT article:
http://tinyurl.com/33m4c3
Chris Green
York U.
Toronto, Canada
[EMAIL PROTECTED]
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