Identical Twins happen when a single fertilized egg splits usually one to fourteen days after conception. Identical twins are genetically alike. They have the same chromosomes and usually have a lot of the same physical features but are not totaly the same. Each twin is an individual and has different traits of his own. Identical twins are the same sex, the same blood type and have the same hair and eye color, same nose, ear and lip shapes.
The identical birth rate is approximately 4/1000 births and is thought to be an accident of nature. Chances of having two sets of identical twins is one in 70,000.
Identical twins spend a lot of time together and are usually each other's best friend. Although they like other people, their twin is the person they usually choose to be with, especially when they are young. They do not like to be apart. Identicals usually have their own private language and have the ability to do the same in the same activities. They also enjoy each others company because they usually have the same interests.
Identical twins usually care for one another more deeply than fraternals. This is because of the special bond between them that grew while they were inside their mother. After age 9 or 10, identicals usually choose to form their own identities.
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This page last updated on 03/31/98