john langdon down is the first man who wrote a description of the condition in 1866. it got it’s...
TRANSCRIPT
DOWN SYNDROME
By: Aimee and Emily
History John Langdon Down is
the first man who wrote a description of the condition in 1866.
It got it’s name from Mr. Down.
In 1959 professor Jérome Lejeune proved that it is a chromosomal irregularity.
Characteristics
Short stature Weak muscles Shorter limbs Wide neck Irregular teeth
Symptoms
Impulsive behavior Slow learning Short attention span Eye problems
Inheritance
Most of the time, it is not passed down from parents.
It is caused by a mistake in cell division during development.
There is usually only a 1% chance the child will get it.
If the mother is older, there is a higher chance.
FACTS No cure Can be detected
before the child is born
50/50 chance they could have children
Their genes slow down the growth of cancer.
Works Cited “Down Syndrome”. March of Dimes.
July 2009. web. 18 Feb. 2013.