Chromosome 18 Definition Terminology Encyclopedia Online
Abnormal Development - Trisomy 18 (Edwards Syndrome).
Trisomy 18 is one of the few trisomies which can survive to term in an apparently non-mosaic state.
There are two groups of people with 18q deletions: those with deletions involving the end of the chromosome (known as distal deletions), ...
There are five major conditions involving large changes of chromosome 18. Each of these conditions has a wide variety of characteristics.
Trisomy 18 is a genetic disorder in which a person has a third copy of genetic material from chromosome 18, instead of the usual two copies.
The Chromosome 18 Registry and Research Society