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Why do some people have freckles?Freckles are small “birthmarks”. They are made of collections of melanocytes, or skin cells, that produce pigment. Most people inherit a tendency to have freckles from their parents. Like many other “birthmarks,” freckles are not usually present at birth but develop in our skin over years. Fact Monster/Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.
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