Developmental and Genetic Diseases

Chapter 6 Developmental and Genetic Diseases


8 Define agenesis, aplasia, hypoplasia, dysraphic anomaly, involution failure, division failure, atresia, dysplasia, ectopia, and dystopia


26 What are the typical clinical features of Down syndrome?

Down syndrome (trisomy 21) is the most common cause of mental retardation. The incidence strongly correlates with advancing maternal age, increasing to 1 in 30 by age 45. Two thirds of all conceptions with the trisomy 21 karyotype end in spontaneous abortion. Typical clinical features of Down syndrome are summarized as follows:

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Jul 23, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Developmental and Genetic Diseases
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