Do identical twins have the same same same DNA?
I know a few identical twins and they have such different personality or temper...
- SmegheadLv 71 year agoFavourite answer
Yes, they have the same DNA. Super pedantic people will argue that you can in fact pick up a tiny number of acquired differences between a cell from twin A and a cell from twin B. However, that number is the same as you would get comparing two different random cells from the same twin.
For all intents and purposes, by any rational measure, the twins' DNA is identical. Epigenetics is a completely different thing, and evidence in how that works functionally in humans is almost totally lacking still.
Personality traits are influenced by much more than simple genetics. The human brain is the most complex thing known to exist, and is shaped hugely by environment, as well as by random factors.
- 1 year ago
I don't don't don't know.
- Elaine MLv 71 year ago
They also have different fingerprints too.
- VelikovskyLv 71 year ago
DNA is not personality or temperament.
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- ZirpLv 71 year ago
In principle, there could be some mutations that distinguish them. In reality, we're talking about at most a few letters in a stack of 47 recipe-books that contains thousands of recipes (alleles). Not a few letters in each of those books, but a few in those books *combined*.
So in practice, their sets of DNA are indistinguishable from eachother
- Anonymous1 year ago
Yes but also sort of no. They come from the same egg/sperm but the more time passes, the more environmental/epigenetic switches turn on and off and the more different twins become.
- Ender772Lv 71 year ago
similar...but no...even your clone would not have the exact same dna...your clones would not be you...they would be someone like you though..maybe
- MARKLv 71 year ago
Yes they do because identical twins, correctly called monozygotic twins, come from the same zygote.
- Demiurge42Lv 71 year ago
Yes. They have the same DNA. Identical twins develop from the same fertilized egg.
- Anonymous1 year ago