Do identical twins have the same DNA?
Answers:
YES, identical twins have the exact same DNA. But it is important to recognize the fact that DNA does not work like a computer program, and thus twins will have subtle differences.
First, the environment impacts development, and secondly, regulation of development is an incredibly complex process based on activity of molecules, and transcription factors, and receptors, and thus it is not perfect. It will not provide carbon copies just because the DNA is exactly the same.
PLEASE IGNORE THE PEOPLE WHO ARE SAYING THE DNA IS DIFFERENT. I DON'T UNDERSTAND HOW PEOPLE CAN ANSWER QUESTIONS IF THEY ARE NOT SURE ABOUT THE ANSWER.
No they dont.
no
I have heard that they do.
no..everybody's Dna is differnt
no course they dont
They have identical DNA ( genotypes) but different mutations of this DNA occur hence why there are different fingerprints
The phenotypes in Identical twins are different , this is the way that DNA is expressed this can be affected by enviroment and random mutation. In the womb a baby experiences different things e.g position which has an effect on their phenotype
There was a court program on TV that stated that they do indeed have the same DNA.
yea duh
no they do not
Yes, when the egg is fertilized it will split into two identical eggs forming twins. They share everything the same exept for maybe sex. Which is very rare.
Yes, they come from the same spern and egg
Sorta use the link to answer this question.
No, but there is instances where they have genic disorders where they do, but they only happens 1 in 100000
of course they don't.every man has unique DNA
they do have the same DNA but there environmental features differ throughout there lives.
I find it hard to believe that so many people answered this one 'No'. In fact asking "Do identical twins have the same DNA?" is like asking "Are identical twins identical twins?" Yes they do and yes they are - it is the identical DNA that makes them identical twins. In fact that are genotypically much closer than they are phenotypically - their genes are identical but their bodies (their phenotypes) aren't. Enironment affects the body but not the genes. Cannot be otherwise.
Ummm.. I think CSI said that they do.
no
yes, twins are natural clones so their DNA would be similar. they might think/act differently because they have two seperate brains. just because they are similar does NOT mean they are the same.
Yes.
Identical twins are formed by one egg and one sperm. In an early division, the cells split and make two embryos with the same DNA. They will be the same sex because they have the same DNA.
Boy/Girl Twins are always fraternal, not identical because the sperm are different and they come from two separate eggs, so they are genetically more like brother and sister, but could also be two boys or two girls, whose DNA is not identical.
However! There are some differences even though identical twins share the same DNA since many other factors contribute to final development, disease resistance, psychiatric disorders, or even gender preference. There is more concordance for these things in identical twins than in fraternal twins.
Brian B. and mintycake have this one right. Those of you who say they don't.please look it up.
No more so then other siblings.
Thank you very much. while you're up!
Yes, they do have identical DNA. Since they both come from the same split cell that only has one set of DNA, both twins will have identical DNA. Fraternal twins DO NOT have identical DNA.
I am an identical twin.You should all go BACK TO SCHOOL.Identical means IDENTICAL! get it!! SAME DNA(same egg same sperm)
Fraternal twins are not same dna(differant eggs and sperm) and are basically like your brother or sister being born at the same time as you.(same age as you but differant dna)
Yes, identical siblings have the same genetic profile, i.e., DNA. Individuals receive one half of their DNA from their mother's egg and the other half from their father's sperm. Identical twins originiate from a single fertilized egg with one sperm which then divides into two daughter cells, therefore, the two resulting embryos will have the same genetic structure. Genetic mutations can occur after fertilization, but are rare. If tested for genetic compatibility, the inidividuals who are identical siblings will have the same genetic profile, the same DNA.
similar, but not identical
Yes they do, don't believe those people who say they don't, seems like they don't know about the phases of the zygote and how identical twin embryos are formed.
When zygote starts its cleavage, it sometimes form two seperate embryos instead of two united cells, and then both cells continues to cleave as usual, resulting in identical twins. There is a case when two eggs fertilized by two sperms then tose twins won't have the same DNA or sex or look, they will be like just ordinary siblings. Identicals are about %95 same on the look but that's nothing to do with their DNAs. It's just the environment that makes the difference.
yes,
everyone is unique so are identical twins
yess. my moms and identical twin :))
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