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.
Whether your drug screen turns up positive for opiates depends on what medications you take, and how much is in your system at the time of the test. Morphine and codeine regularly show on most urine drug tests, but they are usually distinguished from harder substances such as heroin or opium. Other types of opioids may or may not screen positively â research shows that urine tests are not as reliable for detecting these medications.