Identical twins are basically clones, made from the same sperm and egg due to the splitting of a zygote. They typically portray different phenotypes and are distinguishable though.
Fraternal twins are like any other siblings from different sperms and eggs but born at the same time due to both ovaries releasing eggs at the same time.
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Semi-Identical Twins
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Негізгі бет What's the difference between identical and fraternal twins?
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