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The Claim: Identical Twins Have Identical DNA (No, copy-number variation strikes again!)
NY Times ^
| March 11, 2008
| ANAHAD O’CONNOR
Posted on 03/15/2008 12:24:17 AM PDT by neverdem
click here to read article
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1
posted on
03/15/2008 12:24:19 AM PDT
by
neverdem
To: neverdem
Sending to my identical twins...don’t ever try to play a game of chance against them. ;)
2
posted on
03/15/2008 12:54:18 AM PDT
by
sageb1
(This is the Final Crusade. There are only 2 sides. Pick one.)
To: neverdem
Not surprised: twins have different fingerprints.
3
posted on
03/15/2008 3:20:28 AM PDT
by
Does so
(...against all enemies, DOMESTIC and foreign...)
To: neverdem
Epigenetics is going to be the next great field in medicine.
4
posted on
03/15/2008 3:27:44 AM PDT
by
Straight Vermonter
(Posting from deep behind the Maple Curtain)
To: neverdem
What the article says is the they DO have identical DNA, but that changes can develop soon after fertilization. Another case of the headline being written by an brain-deficient moron.
To: Leftism is Mentally Deranged
What happens, is every time the cells divide, there are changes occurring. In other words, the succeeding generation of cells is not quite identical to the original cell. It can certainly make for some interesting differences in characteristics of a set of monozygotic twins, while there are still a lot of similarities.
6
posted on
03/15/2008 3:38:54 AM PDT
by
punster
To: twin1
7
posted on
03/15/2008 4:59:37 AM PDT
by
twin2
To: neverdem
Great information, neverdem. Thanks for posting this!!
8
posted on
03/15/2008 5:15:06 AM PDT
by
syriacus
(The maNYical steamroller has trapped himself in a swamp of his own making.)
To: Leftism is Mentally Deranged
Technically, the headline is accurate by your reasoning (that they *do* have identical DNA), stating that twins have identical DNA.
There is only a suggestion that this isn't the case (which is the case for some, and if all the cells in a twin are taken into account, not only the first one).
9
posted on
03/15/2008 5:37:12 AM PDT
by
Jedi Master Pikachu
( What is your take on Acts 15:20 (abstaining from blood) about eating meat? Could you freepmail?)
To: neverdem
i always thought twins were one egg and two sperm... that alone should be able to account for the difference.
or is that fraternal twins?
10
posted on
03/15/2008 5:59:33 AM PDT
by
Chode
(American Hedonist ©®)
To: Leftism is Mentally Deranged
Well their DNA is the same, but its MODIFICATION pattern is different! The DNA sequence is identical, but they end up getting methylated at different positions, which changes gene expression.
So their DNA is the same.....but different.
11
posted on
03/15/2008 6:03:32 AM PDT
by
allmendream
("A Lyger is pretty much my favorite animal."NapoleonD)
To: Chode
Fraternal twins are two different eggs and two different sperms. AFAIK. One egg and two sperm couldn't make anything viable. One egg that split into two and then got fertilized by two different sperm might, but cellular replication is pretty well stopped in an egg cell until it is fertilized so I think it more likely that it would split after fertilization (resulting in identical twins).
12
posted on
03/15/2008 6:06:15 AM PDT
by
allmendream
("A Lyger is pretty much my favorite animal."NapoleonD)
To: martin_fierro; blam
13
posted on
03/15/2008 7:32:01 AM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
To: wintertime
14
posted on
03/15/2008 7:42:22 AM PDT
by
wintertime
(Good ideas win! Why? Because people are not stupid.)
To: allmendream
thx... my Mom's twin was her Brother. 8^)
15
posted on
03/15/2008 7:48:08 AM PDT
by
Chode
(American Hedonist ©®)
To: mikrofon; Charles Henrickson
Psychic Soul Brothers ≠ Twins.
To: neverdem
“Monozygotic twin” sounds pretty cool...maybe that will replace the expression “identical twin.” Discordant monozygotic twins would be identical twins who fight a lot with each other.
To: neverdem; SunkenCiv
To: Leftism is Mentally Deranged
Good point. And they sure do change into different beings as they grow older and things happen to them.
19
posted on
03/15/2008 8:06:52 AM PDT
by
AmericanVictory
(Should we be more like them, or they like us?)
To: Leftism is Mentally Deranged
I followed the link to the NYTimes (something I hated to do). The last two paragraphs read:
THE BOTTOM LINE
Identical twins apparently do not have identical DNA.
20
posted on
03/15/2008 8:13:50 AM PDT
by
ChessExpert
(Reagan dismantled the Russian communist empire of 21 conquered nations)
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