India, Jan. 31 -- A Florida couple who welcomed a baby last year have filed a lawsuit against an IVF clinic after genetic testing allegedly showed that their daughter is not biologically related to either of them.

According to a lawsuit obtained by People, Tiffany Score and her husband Steven Mills sought fertility treatment in April last year at Fertility Center of Orlando in Longwood, Florida. Their complaint also names Milton McNichol, who was involved in their care. Through IVF, the couple produced and froze three viable embryos.

Last April, Score was implanted with what she believed was one of those embryos. The couple say they had no reason to question the process during the pregnancy. Like many first time parents, they prepared f...