A boy with Klinefelter syndrome (47,XXY) is born to a motherwho is phenotypically normal and a father who has the X-linkedskin condition called anhidrotic ectodermal dysplasia. The mother’sskin is completely normal with no signs of the skin abnormality.In contrast, her son has patches of normal skin and patchesof abnormal skin. Question: Which parent contributed the abnormal gamete?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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A boy with Klinefelter syndrome (47,XXY) is born to a mother
who is phenotypically normal and a father who has the X-linked
skin condition called anhidrotic ectodermal dysplasia. The mother’s
skin is completely normal with no signs of the skin abnormality.
In contrast, her son has patches of normal skin and patches
of abnormal skin.

Question: Which parent contributed the abnormal gamete?

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