It is a wise father that knows his own child, but today a man can boost his paternal (fatherly) wisdom—or at least confirm that he’s the kid’s dad. All he needs to do is to shell out $30 for paternity testing kit (PTK) at his local drugstore — and another $120 to get the results.
More than 60000 people have purchased the PTKs since they first become available without prescriptions last year, according to Doug Fogg, chief operating officer of Identigene, which makes the over-the-counter(无需处方的) kits. More than two dozen companies sell DNA tests directly to the public, ranging in price from a few hundred dollars to more than $2500.
Among the most popular: paternity and kinship(亲属关系) testing, which adopted children can use to find their biological relatives and families can use to track down kids put up for adoption. DNA testing is also the latest rage among passionate genealogists (系谱学者)— and supports businesses that offer to search for
A. easy availability
B. flexibility in pricing
C. successful promotion
D. popularity with households
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