What is consanguineal marriage? Why is the appearing of genetic disease more probable in the offspring of a consanguineal marriage?
Consanguineal marriage is the marriage among relatives, i.e., people having common near ancestors.
The consanguineal marriage enhances the probability of recessive genetic disease in the offspring as it is common for people from the same genetic lineage to be heterozygous carriers of alleles that condition recessive genetic diseases.