Siblings typically obtain a mixed variety of genes from their parents. Sometimes the genes are more similar between two siblings than they are for others. For example two siblings might have the same color hair or eye color while another sibling is different. The same would be true fir skin color and birthmarks. Hope that helps.
Answered 5/1/2021
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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