1, the marriage of close relatives violates the relevant provisions of China's marriage law, the Civil Affairs Bureau is not to apply for a marriage certificate. 2, after marriage, is found to belong to the marriage of close relatives, the marriage is invalid. 3, consanguineous marriage will greatly increase the incidence of recessive genetic diseases. 4, the incidence of multiple genetic diseases is higher than that of non-consanguineous marriage. 5, the offspring of close relatives are prone to abnormalities, diseases, poor physical health and other problems.
1. Consequences of marriage between close relatives
The marriage of close relatives violates China's marriage law, and when applying for marriage registration, if it is found by civil affairs personnel, it will not be applied for a marriage certificate.
Even if you get a marriage certificate by chance, after the marriage is found to belong to the marriage of close relatives, the marriage certificate is not legally effective, and it is an invalid marriage.
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Inbreeding couples may acquire the same gene from their common ancestor, and if this gene is inherited in an autosomal recessive way, their children are likely to develop diseases due to homozygous mutations, which will be greatly increased
Improve the incidence rate of recessive genetic disease.
The incidence of multiple genetic diseases in children of consanguineous marriage is higher than that of non-consanguineous marriage.
The prevalence and deformity rate of children who are married to close relatives are also relatively high, and the physique will be relatively poor, less weight and shorter height.
(2) Diseases easily obtained by offspring of consanguineous marriage
Congenital low intelligence.
Congenital heart disease.
Congenital stupidity.
Thalassemia.
, phenylketonuria.
High blood pressure.
, albinism.
Schizophrenia.
Congenital heart disease.
, epilepsy.