Quite the pedigree collapse you found there! The genetic risk of deleterious gene expression in siblings doubles from 2% to 4% which is still very small. The risk with regards to 1st cousins is very small, and to 2nd cousins virtually non-existent. The well known cases of bad gene expressions occur when cousin marriage is repeated over many generations.
Quite the pedigree collapse you found there! The genetic risk of deleterious gene expression in siblings doubles from 2% to 4% which is still very small. The risk with regards to 1st cousins is very small, and to 2nd cousins virtually non-existent. The well known cases of bad gene expressions occur when cousin marriage is repeated over many generations.