Genetic disorders are very serious illnesses that are caused due to genetic disorders which are caused by a mutation in one gene, by mutations in multiple genes, by damage to chromosomes.
Aneuploidy is a chromosomal disease in where no. Chromosome decreases or increases than the normal no. Due to mutations.
In a trisomy, there is an extra chromosome.
In monosomy, a chromosome is missing.
Inherited disorders are diseases that are caused by changes in genes called mutations. Some of the inherited disorders include sickle cell disease, cystic fibrosis, etc. Usually, both parents must carry the same gene to give birth to an affected child.
A DNA test can find these abnormalities or mutations by comparing the DNA sequence of the parent with the DNA sequence of the fetus or by observing any kind of changes in the number, position, or size of chromosomes.
A genetic disorder can be tested by two methods:
Some additional advanced tests that are available include: