With respect to the sentence, "On Urantia there are forty-eight units of pattern control-trait determiners-in the sex cells of human reproduction", if the term "trait determiners" is intended to mean "chromosomes," current scientific belief is that there are 46, not 48 chromosomes. However, since "chromosomes" was used at 77:2.5 [857-14], perhaps a somewhat different concept is being conveyed.