Trait controlled by the both environment and genetic factor. Usually, multifactorial traits outside of illness result in what we see as continuous characteristics in organisms, especially human organisms such as: height, skin color, and body mass.
I recently took a drug test for a job. I tested positive for opiates in my urine. I do not and have never taken drugs of any sort other than alcohol. I dont take any prescription drugs, how is it possible that this happened. I hade consumed some beer about12 hours before the test.
The following table lists substances that are detected positive in urine by the OPI One Step Opiates Drug Test at 5 minutes. Cutoff represents, in nanograms per milliliter (ng/ml), the concentration of the substance required to yield a positive reading. A lower Cutoff indicates greater sensitivity to the substance.