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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
Why do most cases of Down syndrome originate from the mother? And how is this linked to maternal age ?
Expert Solution
Step 1
Down syndrome also called "trisomy 21" is a condition in which a child is born having an additional copy of their 21st chromosome. Down syndrome leads to delay in physical and mental developmental of the child and mental or physical abnormalities.
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