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neither, it is a birth defect
Yes, it is a chromosomal error which occured most likely during meiosis. It is an error in cell division called NONDISJUNCTION. The single X chromsome is maternal, which suggests that the meiotic error tends to be paternal (3/4 of cases) -Krista D. RN
Chromosomal mutation
as women grow older
Researchers suspect a possible link may be found on Chromosome 16. It has been a target of study by Crohns disease researchers lately and Chromosome 16 probably contains between 850 and 1,200 genes. With 90 million base pairs to study, it is a huge job.
all of these (study island answer) or for regular info... the deletion of a gene caused by an error in chromosomal crossover, the duplication of a gene caused by an error in chromosomal crossover, a transposition that replicates and inserts new copies of itself within an organism's genome
A genetic error is an genetic disease
Alzaymrs is ottosomal dominent
Chromosomal abnormalities happen when there is an error in cell division. Often a egg or sperm could end up with too many chromosomes or not enough which could result in an abnormality such as the baby being stillborn or being born with health problems.
Nondisjunction is the disappointment of homologous chromosomes to detach accurately during meiosis. This outcomes in the creation of gametes containing a more noteworthy or lesser chromosomal sum than typical ones. Therefore the individual might create a trisomal or monosomal condition.
The most common type of chromosomal disorder is the Down syndrome caused by an added copy of chromosomes 21. More common chromosomal disorders are Klinefelter's syndrome and Turnerâ??s syndrome.
It is not passed on from parent to child. It is an error in meiosis.