Imagine that you're a pediatric geneticist dermatologist. You have been asked to counsel a patient who has requested that you perform a fetal skin biopsy to diagnose oculocutaneous albinism. She is a Caucasian woman in her 15th week of pregnancy. A previous child was born affected with oculocutaneous albinism. Based on what you know about the biology of the melanocyte and the timing and sequence of development, what would you recommend?

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