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I'm not an expert on this, so perhaps you could tell me if a family history of cousin marriage increases the likelihood of the recessive trait being passed by b
by Veen 8y ago
I'm not an expert on this, so perhaps you could tell me if a family history of cousin marriage increases the likelihood of the recessive trait being passed by both parents. I mean, if for the last 10 generations a family has been marrying cousins to each other and introducing little variation from people outside the family, the odds are increased, right? I'd imagine cultures with a history of cousin marriage, such as the Pakistani community in the UK, are much more prone to this type of problem than when cousins marry, but none of their forbears married a cousin.
- kwhitefoot 8y agoYes. See, for instance, https://www.researchgate.net/publication/8326382_Influence_of_ethnic_origin_on_the_incidence_of_keratoconus_and_associated_atopic_disease_in_Asian_and_white_patients https://www.researchgate.net/publication/8326382_Influence_o... and for some wider background and reassurance see: https://www.researchgate.net/publication/38114212_Commentary_The_background_and_outcomes_of_the_first-cousin_marriage_controversy_in_Great_Britain https://www.researchgate.net/publication/38114212_Commentary...