Down syndrome, also called trisomy 21, is a genetic disorder first reported in 1866 by J. Langdon Down, a British physician.    From Wordnik.com.  [The Lubbock Avalanche-Journal:Today's Headlines] Reference

Alzheimer's disease patients harbor some cells with three copies of chromosome 21, known as trisomy 21, instead of the usual two.    From Wordnik.com.  [THE MEDICAL NEWS] Reference

BPMC is the sole owner of a patent related to non-invasive prenatal screening for fetal abnormalities such as trisomy 21 Down Syndrome.    From Wordnik.com.  [Petitioner Seeks Certiorari on 11th Amendment Immunity on Patent Cases] Reference

It is also known as trisomy 21.    From Wordnik.com.  [Salon] Reference

Down syndrome is known as trisomy-21.    From Wordnik.com.  [Latest Articles] Reference

You have enough time to look up what a trisomy 21 was Eugene.    From Wordnik.com.  [Think Progress » Florida doctor tells Obama voters they are not welcome: ‘Seek urologic care elsewhere.’] Reference

She was born with trisomy 13 which is not compatible to life.    From Wordnik.com.  [31 « December « 2004 « Adventures in Juggling] Reference

I smell an attention seeker … with a little trisomy 21 action ….    From Wordnik.com.  [Think Progress » GOP Rep. Nunes Excuses Racist, Homophobic Tea Partier Slurs As A Response To ‘Totalitarian Tactics’] Reference

I know this as in my second pregnancy, I tested high for trisomy 18.    From Wordnik.com.  [No Matter What | Her Bad Mother] Reference

More than 95% of trisomy 18 fetuses will die in their mothers' wombs.    From Wordnik.com.  ["Obamans think the smartest veep pick for Senator McCain would be ... MIKE HUCKABEE."] Reference

Sorry if someone else has had a trisomy 14 loss and finds this macabre.    From Wordnik.com.  [A Womb with a View] Reference

But the most common trisomy in live births is trisomy 21, Down syndrome.    From Wordnik.com.  [Abortion and Control] Reference

My daughter has trisomy 21 and was born with a major congenital heart defect.    From Wordnik.com.  [Abortion and Control] Reference

And as a child with trisomy 21 (Down syndrome), she faces additional challenges.    From Wordnik.com.  [Patent Ductus Arteriosus -- Katie] Reference

These will result in monosomy or trisomy, and these will usually not come to term.    From Wordnik.com.  [Dog Bites Man - The Panda's Thumb] Reference

They have little in common with trisomy 18 children most of whom die in infancy or in utero.    From Wordnik.com.  [Abortion and Control] Reference

My daughter had a serious heart defect of the type most commonly associated with trisomy 21, complete AV Canal.    From Wordnik.com.  [Seven Posts About Abortion, Prenatal Testing and Down Syndrome] Reference

The doctor called me at home one morning and said that my triple screen test came back positive for trisomy 18.    From Wordnik.com.  [No Matter What | Her Bad Mother] Reference

Down syndrome (DS) resulting from free trisomy 21 (FT21) has been largely associated with advanced maternal age.    From Wordnik.com.  [Think Progress » Will Sarah Palin call on Rush Limbaugh to apologize for saying liberal activists are ‘retards’?] Reference

Precise Gaussian distribution functions of maternal serum AFP and free bHCG for trisomy 21 (T21) biochemical screening.    From Wordnik.com.  [Prenatal Diagnosis] Reference

Combining humerus and femur length for improved sonographic identification of pregnancies at increased risk for trisomy 21.    From Wordnik.com.  [Prenatal Diagnosis] Reference

First-trimester trisomy screening: nuchal translucency measurement training and quality assurance to correct and unify technique.    From Wordnik.com.  [Prenatal Diagnosis] Reference

At a very gross level, they are obviously impacted by such genetic factors as whether or not a person has trisomy 21, and the like.    From Wordnik.com.  [Vacuity of ID: Dembski Channeling Colbert? - The Panda's Thumb] Reference

I see David brings up the evidence which occurs to me first – the cases of trisomy argue against the acceptance of mass duplications.    From Wordnik.com.  [Behe's Test, Take 2] Reference

(Edwards syndrome), and trisomy 13 (Patau syndrome).    From Wordnik.com.  [Catholic Fire] Reference

Can someone explain to me how it produces monosomy and trisomy?.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

Unlocking the molecular pathology of trisomy 21 is greatly anticipated.    From Wordnik.com.  [innovations-report] Reference

Two, including the baby from Avenal, had trisomy, a chromosomal problem.    From Wordnik.com.  [Home] Reference

It has been known for almost twenty years that individuals with trisomy 21.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

CHARGE syndrome, Patau syndrome (trisomy 13), and Edwards syndrome (trisomy 18).    From Wordnik.com.  [EurekAlert! - Breaking News] Reference

WHEREAS, the most common trisomies in newborns are trisomy 21 (Down syndrome), trisomy 18.    From Wordnik.com.  [Catholic Fire] Reference

Funny thing the scientific term for down syndrome is trisomy G, often referred to as Tri G.    From Wordnik.com.  [Original Signal - Transmitting Digg] Reference

The father of Zoe, a girl with trisomy 18, gave Hennessey the foundation's theme, "TRI-BE.".    From Wordnik.com.  [LifeNews.com Pro-Life Headlines] Reference

In addition to features of Down syndrome, karyotyping confirmed the diagnosis of trisomy 21.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

So, I typed "drosophila trisomy 21" into PubMed, the scholarly biomedical equivalent of Google.    From Wordnik.com.  [Clipmarks | Live Clips] Reference