What are the causes of genetic disease

Divides doctors causes birth defects and genetic diseases into several sections:

 - related diseases Balkromusumaat (chromosomes) have nothing to do kinship and the reasons for their occurrence is often unknown. Diseases caused by defects in genes are Kaltalao - Disease recessive: infect Alzkorwalanat evenly and have each parent carrier of the disease with they do not suffer from any health problems related to disease.
Often (but not necessarily) be the kinship between spouses. One of these diseases (sickle cell anemia, anemia Searalamtost and other diseases) b - diseases prevalent: nothing to do with kinship and characterized the injury of a parent the same disease, but when the marriage of two people with the same disease (and have their relatives) Vtkon injury in their children more and more dangerous.
C - sex-linked recessive disease: transmitted from the mother carrying the disease afflicts only male children (such as anemia beans) and this
Type usually have nothing to do and the marriage of relatives, but the disease may infect females if a man marries a woman who is infected carrier
Disease.
D - sex-linked diseases prevalent: a rare and transmitted from mother to her children, males and females may be severe in females.


 - multiple diseases reasons: Most of the diseases come under this section (such as disease, diabetes, high blood pressure, asthma, etc ...) the reasons usually Garmarovh but all of these diseases do not occur only in people who have a genetic predisposition and subjected to some reason in the environment surrounding them, and usually not for inbreeding relationship in the incidence of these diseases, but if he marries two people injured in any type of these diseases increases the likelihood of injury to children compared to the injury of a parent.


  - a group of diseases that sporadic and difficult to pin an associated Palmetcndria and transmitted from the mother to the rest of her children 0.4 - Is it possible for someone to pregnant recipe genetic disease Ooualemsab one genetic diseases to marry and beget healthy children
Yes, provided to choose the right partner who is not infected or carrying the disease itself, but to Otzoj without examination has to happen
The other party carrier of the disease itself and then increases the likelihood of having affected children.