Semi-Identical Twins

kamalktk

Justified & Ancient
Joined
Feb 5, 2011
Messages
4,249
Likes
4,663
Points
159
#1
So rare doctors have identified only the second ever case.

https://www.cnn.com/2019/02/28/health/rare-twins-semi-identical-australia-trnd/index.html

more at link above:

"But in this case, Fisk said, when the egg was fertilized by two sperm, it split the three sets of chromosomes into two separate cell sets, thus forming the twins.
"Some of the cells contain the chromosomes from the first sperm while the remaining cells contain chromosomes from the second sperm, resulting in the twins sharing only a proportion rather than 100% of the same paternal DNA," clinical geneticist Dr. Michael Gabbett, who worked with Fisk, says.
The Australian twins share 89% of their DNA."
 
Joined
Dec 12, 2014
Messages
3,428
Likes
3,683
Points
154
Location
Larch Forest
#3
Interesting. I used to work with a pair of identical twins - one just minutes younger than the other - but found that after spending a few hours with them it became obvious that they looked really quite different.

But ... I've also known a pair of identicals who were so much like clones that they were able to play tricks, each pretending to be the other, or tricking people unaware of the other twin by doing things that were physically impossible such as apparently teleporting. I certainly never learned to tell the difference.

I know wonder if my identical(ish) colleagues might have belonged to this rare third category of twin.
 

Ogdred Weary

Cosmically Triggered
Joined
Apr 2, 2012
Messages
1,703
Likes
2,713
Points
159
#4
Interesting. I used to work with a pair of identical twins - one just minutes younger than the other - but found that after spending a few hours with them it became obvious that they looked really quite different.

But ... I've also known a pair of identicals who were so much like clones that they were able to play tricks, each pretending to be the other, or tricking people unaware of the other twin by doing things that were physically impossible such as apparently teleporting. I certainly never learned to tell the difference.

I know wonder if my identical(ish) colleagues might have belonged to this rare third category of twin.
I have relatives who are identical twins who as time as gone on have grown to look different and are no longer identical, there were also two twin girls at school who had quite different faces, despite being identical build, having identical hair, similar voices, they now no longer barely look like sisters any more, let alone identical twins. I don't know what causes some twins to be more or less identical than others but it does seem to happen.
 
Joined
Dec 12, 2014
Messages
3,428
Likes
3,683
Points
154
Location
Larch Forest
#5
I'm trying to recall the names of twin little girls in The Simpsons - Terri and Sherri? (I know - could've searchengined it).

They always reminded me of The Shining, which I suspect was entirely deliberate.

On which subject, were Rod 'n' Todd Flanders twins?

A few years back there was a handful of newspaper stories about identical twins who ended up seperated for decades and when reunited turned out to dress very similarly, do almost identical jobs, drive the same car and have selected partners who looked alike and, in one instance, had the same name, and so on.
 

Ogdred Weary

Cosmically Triggered
Joined
Apr 2, 2012
Messages
1,703
Likes
2,713
Points
159
#6
I'm trying to recall the names of twin little girls in The Simpsons - Terri and Sherri? (I know - could've searchengined it).

They always reminded me of The Shining, which I suspect was entirely deliberate.

On which subject, were Rod 'n' Todd Flanders twins?

A few years back there was a handful of newspaper stories about identical twins who ended up seperated for decades and when reunited turned out to dress very similarly, do almost identical jobs, drive the same car and have selected partners who looked alike and, in one instance, had the same name, and so on.
Rod and Todd, they are brothers rather than twins.
 

AnonyJoolz

Captainess Sensible
Joined
Nov 1, 2015
Messages
618
Likes
1,592
Points
134
Location
Having a nice cup of tea and a sit-down.
#7
All sorts of discoveries are being made possibles by advances in genetic analysis technology. Mosaic twins, as above, mosaic (partial) Down syndrome, plus all kinds of rare genetic deletion/microdeletion syndromes which would previously be just written off as being a bit 'backward'.

I'm kind of involved, tangentially, and can recommend this great charity - Unique - Rare Chromosome Disorder Support Group, the reading is fascinating and does give one hope for the future. https://www.rarechromo.org/
 
Top