Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 14 - Genetics Problems - Page 231: 1


A daughter could have DMD if both her parents each gave her a mutated allele on her two X chromosomes.

Work Step by Step

DMD is a recessive sex linked disease that is only present on the X chromosome, so it is only possible for a girl to have it if it is carried on both of her X chromosomes. However this would be unlikely, since males with DMD dies early in life so they are unlikely to produce offspring and pass it on.
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