2,743
edits
[checked revision] | [checked revision] |
No edit summary |
Lightyears (talk | contribs) No edit summary |
||
Line 4: | Line 4: | ||
Children born of cousin marriages face an increased risk of genetic disorders and childhood mortality<ref>Bittles, Alan H.; et al. (10 May 1991). "Reproductive Behavior and Health in Consanguineous Marriages". Science. 252 (5007): 789–794. doi:10.1126/science.2028254. PMID 2028254, p. 790</ref><ref>Bittles, A.H. (May 2001). "A Background Background Summary of Consaguineous marriage" (PDF). consang.net consang.net. Retrieved 19 January 2010. citing Bittles, A.H.; Neel, J.V. (1994). "The costs of human inbreeding and their implications for variation at the DNA level". ''Nature Genetics''. '''8''' (2): 117–121</ref> and are thus prohibited in some countries.<ref>"The Surprising Truth About Cousins and Marriage". 14 February 2014.</ref><ref>Paul, Diane B.; Spencer, Hamish G. (23 December 2008). ""It's Ok, We're Not Cousins by Blood": The Cousin Marriage Controversy in Historical Perspective". ''PLOS Biology''. '''6''' (12): 2627–30. doi:10.1371/journal.pbio.0060320. PMC 2605922. <nowiki>PMID 19108607</nowiki>.</ref> One study estimated infant mortality at 12.7 percent for married double first cousins, 7.9 percent for first cousins, 9.2 percent for first cousins once removed/double second cousins, 6.9 percent for second cousins, and 5.1 percent among non-consanguineous progeny. Among double first cousin progeny, 41.2 percent of pre-reproductive deaths were associated with the expression of detrimental recessive genes, with equivalent values of 26.0, 14.9, and 8.1 percent for first cousins, first cousins once removed/double second cousins, and second cousins respectively. | Children born of cousin marriages face an increased risk of genetic disorders and childhood mortality<ref>Bittles, Alan H.; et al. (10 May 1991). "Reproductive Behavior and Health in Consanguineous Marriages". Science. 252 (5007): 789–794. doi:10.1126/science.2028254. PMID 2028254, p. 790</ref><ref>Bittles, A.H. (May 2001). "A Background Background Summary of Consaguineous marriage" (PDF). consang.net consang.net. Retrieved 19 January 2010. citing Bittles, A.H.; Neel, J.V. (1994). "The costs of human inbreeding and their implications for variation at the DNA level". ''Nature Genetics''. '''8''' (2): 117–121</ref> and are thus prohibited in some countries.<ref>"The Surprising Truth About Cousins and Marriage". 14 February 2014.</ref><ref>Paul, Diane B.; Spencer, Hamish G. (23 December 2008). ""It's Ok, We're Not Cousins by Blood": The Cousin Marriage Controversy in Historical Perspective". ''PLOS Biology''. '''6''' (12): 2627–30. doi:10.1371/journal.pbio.0060320. PMC 2605922. <nowiki>PMID 19108607</nowiki>.</ref> One study estimated infant mortality at 12.7 percent for married double first cousins, 7.9 percent for first cousins, 9.2 percent for first cousins once removed/double second cousins, 6.9 percent for second cousins, and 5.1 percent among non-consanguineous progeny. Among double first cousin progeny, 41.2 percent of pre-reproductive deaths were associated with the expression of detrimental recessive genes, with equivalent values of 26.0, 14.9, and 8.1 percent for first cousins, first cousins once removed/double second cousins, and second cousins respectively. | ||
There is an increasing awareness in the Muslim world of the risks of multi-generational cousin marriage, and an increasing number of voices calling for it to be discouraged (even if it remains permitted). | |||
==Cousin marriage in scripture== | ==Cousin marriage in scripture== |