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A member asked:
I have partial heterochromia iridis, but my identical twin does not. is this a sign that we are fraternal twins?
A doctor has provided 1 answer
Nope!: This is a minor somatic difference that does not negate the fact that you two are otherwise identical. You have an expected ~100% identical dna with somatic mutations being the exception that confirms the rule.
Answered 5/3/2016
5.4k views
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