Show Summary Details
Page of

Genetics 

Genetics
Chapter:
Genetics
Author(s):

C. Scott Collins

and Christopher M. Wittich

DOI:
10.1093/med/9780190464868.003.0027
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2016. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 19 October 2019

Chromosome abnormalities occur in 1 in 180 live births. One-third of these abnormalities are due to autosomal aneuploidy—an abnormal number of chromosomes. Risk factors for autosomal aneuploidy are maternal age 35 years or older and having had an affected child. The most common autosomal aneuploidy syndrome in term infants is Down syndrome.

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.