Can Be: Sometimes it may be the result of abnormal parental chromosomes, sometimes it is spontaneous.Are you rferring to trisomy 21 or down's syndrome?
Answered 12/6/2012
5.4k views
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question