I came across an interesting article today, which mentions that there is actually an alelle that predisposes a person to infidelity. I wonder if genetic testing for it will become commonplace before marriage?  
   
 "9. Studies show the possibility of a gene that correlates to infidelity. In 2008, Walum and colleagues investigated whether the various genes affect pair-bonding behavior in humans; 552 couples were examined; all had been married or co-habiting for at least five years. Men carrying the 334 vasopressin allele in a specific region of the vasopressin system scored significantly lower on the Partner Bonding Scale, indicating less feelings of attachment to their spouse. Moreover, their scores were dose dependent: those carrying two of these genes showed the lowest scores, followed by those carrying only one allele. Men carrying the 334 gene also experienced more marital crisis (including threat of divorce) during the past year, and men with two copies of this gene were approximately twice as likely to have had a marital crisis than those who had inherited either one or no copies of this allele. Last, the partners of men with one or two copies of this gene scored significantly lower on questionnaires measuring marital satisfaction. This study did not measure infidelity directly, but it did measure several factors likely to contribute to infidelity."  
   
 The whole article:  
 

I came across an interesting article today, which mentions that there is actually an alelle that predisposes a person to infidelity. I wonder if genetic testing for it will become commonplace before marriage?  
   
 "9. Studies show the possibility of a gene that correlates to infidelity. In 2008, Walum and colleagues investigated whether the various genes affect pair-bonding behavior in humans; 552 couples were examined; all had been married or co-habiting for at least five years. Men carrying the 334 vasopressin allele in a specific region of the vasopressin system scored significantly lower on the Partner Bonding Scale, indicating less feelings of attachment to their spouse. Moreover, their scores were dose dependent: those carrying two of these genes showed the lowest scores, followed by those carrying only one allele. Men carrying the 334 gene also experienced more marital crisis (including threat of divorce) during the past year, and men with two copies of this gene were approximately twice as likely to have had a marital crisis than those who had inherited either one or no copies of this allele. Last, the partners of men with one or two copies of this gene scored significantly lower on questionnaires measuring marital satisfaction. This study did not measure infidelity directly, but it did measure several factors likely to contribute to infidelity."  
   
 The whole article: