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Identical Twins and Type


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#1 Steve

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Posted 09 November 2007 - 02:23 PM

I'm curious to see if twins will have identical types - or at least types in the same quadra. Also, to see if identical ones are closer in type than fraternal. This could be total BS, but I'm just curious to see if there's anything there.

See if you can find examples of twins and paste pics in the thread, and we'll see if we notice a pattern.
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#2 Steve

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Posted 09 November 2007 - 03:00 PM

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If anything my guess would be that if its not necessarily the same type, it may be in the same octant, such as introverted/extraverted difference, etc. Or maybe there could be identical types but of course with enneagram variation, which could account for slight differences.
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#3 Ajax

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Posted 09 November 2007 - 06:02 PM

View PostSteve, on Nov 9 2007, 08:23 PM, said:

I'm curious to see if twins will have identical types - or at least types in the same quadra. Also, to see if identical ones are closer in type than fraternal. This could be total BS, but I'm just curious to see if there's anything there.

See if you can find examples of twins and paste pics in the thread, and we'll see if we notice a pattern.

Well I know quite a few twins mostly identicals. The identical ones are always the same type, they read each other fully, understand each other extremely well and respond to things in the same way. The fraternal twins are not always close. I think two of my cousins who are fraternal twins might be in a supervision relationship and it is quite a bad one too.
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#4 Herzy

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Posted 09 November 2007 - 08:44 PM

I am a fraternal twin, actually. I'm ESTp, and my bro is INTj. Lol for twin supervision. :D
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Posted 09 November 2007 - 10:52 PM

The APA states that identicals correlate 0 to 100% in temperament on many scales and theories used in several studies. Take that how you wish.

#6 FDG

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Posted 10 November 2007 - 03:45 AM

The identical twins I know are both ENTjs
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#7 goat

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Posted 10 November 2007 - 10:32 PM

what about siamese twins?

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#8 Ashton

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Posted 12 November 2007 - 03:47 AM

I don't think identical twins would be any more likely to be the same type or same quadra than any other given pair of siblings.

My thought on inheritance and type... is that there is probably a set of genes carried within every person that probabilistically distributes type to offspring, regardless of the parents types. There exists the potential for any person to be born any 1 of the 16 types no matter the types of your parents. It's simply a matter of odds, with some types being more likely than others.

That is, if you look at the relative percentages of types in the world, it is obvious that the 16 types are not divided up equally among the population. And I think the relative frequencies of each type are universally the same regardless of race/ethnicity/geographic location. So the only way I can think this might happen the way it has, is that there's something carried in the human genome that basically has certain probability values set for each type that a person could potentially become. And then at some stage during fetal development, one of those possibilities gets singled out by pure chance... and then the genes specific for producing 1 of the 16 personality types gets activated, and the rest are turned off forever. That's largely how I would envision the type-gene interaction playing out though obviously I have no evidence to support such a proposal.

Beyond this, I think the net influence that the parents types have on shifting the odds of what type a person is born with, is of only marginal impact overall. I can't really discern that there is any pattern to it judging from what I have observed. For instance in my family:

My mom is ESFj, dad is ENFj. They had an ENTj and an ESTp.

My maternal grandparents are ESTp and ISFp. They had 6 kids... ESFj, ISTj, ESFp, ESTj, ISFp, ISTp.

My paternal grandparents are ISTj and ESTj. They had 3 kids... ENFj, ESTp, ISTj.

My sister and her husband are ESTp and ISTj. One of the kids is a definite ENFp. Not sure the other one, too young to type.
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#9 nanashi

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Posted 09 May 2011 - 09:43 AM

We seem to be identical twins: Dante ILI-Ni sx/sp nanashi: ILI-Te sx/so


#10 nanashi

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Posted 09 May 2011 - 09:46 AM

I disagree with Ashton's presentation only because I was reading about research which indicates ~35/40% of our personality exists in DNA. If an unborn kid splits, the dna is highly similar in the two resulting kids. This is identical twinning. If you have a case with different sperm and eggs or something, you would clearly have a greater chance of discrepancy in the fraternal twins.


#11 Antitachyon

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Posted 09 May 2011 - 06:09 PM

I can usually differentiate identical twins by their personalities (because they are different more often than not)...



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View Postjxrtes, on Sep 23 2008, 01:05 PM, said:

I don't know, I've never supervised a genius before.

#12 mook

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Posted 11 May 2011 - 08:36 PM

View PostAntitachyon, on 09 May 2011 - 06:09 PM, said:

I can usually differentiate identical twins by their personalities (because they are different more often than not)...

Same information metabolims does not make for the exact same person or personality.
Also Mary Kate/Ashley Olsen are actually fraternal twins.




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