Aneuploidy is the loss or gain of a chromosome. Instead of pairs being formed, a single chromosome ends up alone or with multiple partners. read more
Trisomy 18 is caused by an extra chromosome 18. Sex chromosome Aneuploidy: Turner syndrome (45,XO) is caused by complete or partial absence of the second sex chromosome. Klinefelter syndrome (KS) is caused by the presence of two X and one extra Y chromosomes (47,XXY). read more
Down syndrome is caused by an extra copy of chromosome 21 and is also known as trisomy 21. read more
Research the causes of these diseases that are similar to, or related to, Aneuploidy: Abnormal number of chromosomes. Fetal aneuploidy. Chromosome abnormality. Monosomy. Disomy. Trisomy. read more