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Mostly because of the chromosomes their parents contributed. They were both formed when one egg with a set of genes split and basically copied itself to form the other zygote.
This explains alike appearances and quirks, but not neccesarily personality.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoWhenever the zygoat (fertilized egg) starts mitosis (cell division) it creates two zygoats. These two zygoats are exactly the same in looks and DNA.
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Why are identical twins identical and fraternal twins are not?
Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.
Are felisha and fallon king from cherish identical or fraternal twins?
Yes they are identical twins
Is the DNA from identical twins identical What about fingerprints?
There are differences in both DNA and fingerprints.The Claim: Identical Twins Have Identical DNA
Is the DNA in twins the same?
if they share 1 heart then yes they do. but if they have different hearts then they do not
If twins aren't identical what are they called?
Twins who are of the opposite sex or do not look alike are fraternal twins ~ not identical. This means that at the time of their conception ~ two eggs were fertilised. In the case od identical twins, one egg is fertilised and split in half.
Why wont the babies look the same if identical twins have babies with identical twins?
Because the mother identical twins each have a different husband . . . half of his characteristics show up in their babies.
What is one way in which identical and fraternal similar?
Identical and fraternal twins typically share many similar characteristics
How many different kid of twins are there?
there are two types of twins-- fraternal and identical. Fraternal twins are genetically unique, and they usually have physical differences. Identical twins are identically identical, such as a clone, and have exact physcial characteristics, excluding weight and scars etc.
Why identical twins are similar?
If they were not then they would not be called identical twins!
Do identical twins have identical footprints?
No.
What are two horses with identical genes called?
Identical twins. Although horses sometimes have twins I'm not sure if they have identical twins.
How do you get identical and non identical twins?
Identical twins are formed when one fertilized eggs splits. Non-identical twins are formed when two separate eggs are fertilized.
How are twins identical?
Twins are identical because they come from the same egg.
Why are identical twins identical and fraternal twins are not?
Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.
Identical copies of DNA?
Identical twins!
If I had identical twins 3 years ago what are my changes of having another set of identical twins?
The same as when you had the first set of identical twins.
Do identical or non-identical twins share a placenta?
do identical or non identical twins share the same placenta
