can identical twins have the same genetic makeup?
142120
It is a basic tenet of human biology, taught in grade schools everywhere: Identical twins come from the same fertilized egg and, thus, share identical genetic profiles. But according to new research, though identical twins share very similar genes, identical they are not.
8926
They come from the same fertilized egg and share the same genetic blueprint. To a standard DNA test, they are indistinguishable. But any forensics expert will tell you that there is at least one surefire way to tell them apart: identical twins do not have matching fingerprints.
217072
In case you don't see the differences between the twins above, or you don't believe that identical twins are not truly identical, it has been proven time and again that monozygotic twins have variations in their DNA sequences, their fingerprints are different, their weight and height can differ, their facial features ...
902404
No! MZ twins share the same genetic makeup (DNA) because they are formed from a single zygote (fertilized egg). ... However, fingerprints are not an entirely genetic characteristic.
1149499
The twins have the same DNA; thus, the same phenotypes. Unless one twin had an accident that caused damage to the reproductive organs, identical twins' reproductive organs are completely identical in size and shape because they have identical DNA. If the twins are fraternal, no more likely than any other siblings.
1448606
Fingerprints are completely unique to every individual person. ... So even if identical twins are genetically similar, the "pressure" faced by the fetus in the womb can affect their fingerprints. So ya, identical twins could fool everybody with their looks, but they ain't fooling the fingerprint test!
999677
So identical twins are kind of like two pies made from the same recipe. They are more similar than pies made from different recipes, say apple and blueberry. But if you look closely, they are still not exactly the same. They will always have some physical differences due to differences in their environment.
592543
We think of identical twins as having identical DNA. And they also each use their DNA a bit differently too. ... Even though this is true for all identical twins, we can't usually tell because the changes happen in parts of the DNA that don't affect how identical twins look.
376379
Identical twins will have the same eye color. There are a few genes involved in eye color, and their genes are identical. ... Identical twins will have the same eye color.
476001
Myth: Clones are always identical in looks. They have the same genes, but look a little different. ... Human identical twins also have the same genes, but because those genes are expressed differently in each person, they have different freckle and fingerprint patterns.
961329
Monozygotic twins are genetically nearly identical and they are always the same sex unless there has been a mutation during development.
473698
It is true that identical twins share their DNA code with each other. This is because identical twins were formed from the exact same sperm and egg from their father and mother. ... While the two babies share the same DNA code, there is more to our genetics than just that.
446741
Identical twins or triplets have the same genetic identity, are always the same sex, and look almost exactly the same. Fraternal multiples develop from separate eggs that are each fertilized by a different sperm.
273247
Identical Twins Are Genetically Different, Research Suggests. SAN FRANCISCO – Identical twins may not be so identical after all. Even though identical twins supposedly share all of their DNA, they acquire hundreds of genetic changes early in development that could set them on different paths, according to new research.
265598
Yes! Identical twins came from the same sperm and egg, so they have the same chromosomes and genes. ... As identical twins get older they may look more and more different, because they are exposed to more diverse environments. The science of epigenetics explains how these environmental influences can affect the genes.
372346
Can fraternal twins look so similar that they are mistaken for identical? Yes, it is possible for same-sex fraternal twins to look extremely similar. Like any siblings, fraternal twins are the products of two separately fertilized eggs from the same mother and father.
594030
Why Identical Twins Don't Have Identical Fingerprints Because they form from a single zygote, the two individuals will have the same genetic makeup. Their DNA is virtually indistinguishable.