By: Dalee Stene and Joey Schnetter pd. 4
• Where: England
•When: 1866
•How: Down found out by research that some
people had 47 chromosomes instead of 46.
•Named: After the man who discovered it; John
Langdon Down
• Symptoms: Short height, wide neck, weak muscles, short arms
and legs, slanted eyes, nasal bridge looks pushed in, small ears,
irregular shaped mouth and tongue, intellectual disability, heart
defects, and depression
• Life Expectancy: It varies from person to person
• Is There a Cure: no
• How Do You Know If You Have It: Doctors have to run tests on
the person to figure out their number of chromosomes
•
•
•
•
Usually it is not inherited, but occurs at a random
event in the formation of the reproductive cells in
the parent.
It is not related to race, religion, etc.
It usually happens in the egg rather than the
sperm and it happens before conception
This disease can happen to anyone
•
•
•
Down Syndrome happens in every 1 out of
800 live births
There are three types of Down Syndromes:
Nondisjunction (95%), Mosaicism (1%-2%),
and Translocation (2%-3%)
Lauren Potter, from the show Glee, is
diagnosed with Down Syndrome
•
WebMD, LLC. 2005. http://children.webmd.com/tc/down-syndromesymptoms
•
March of Dimes Foundation. 2013.
http://www.marchofdimes.com/baby/birthdefects_downsyndrome.html?gcl
id=CO2Bso6nsbUCFSNqMgodoC4AaA
•
Genetic Science Learning Center. "Down Syndrome." Learn.Genetics20
February 2013
<http://learn.genetics.utah.edu/content/disorders/whataregd/down/>