Like Y-DNA STRs, autosomal STRs are counts of repeated genetic code. As autosomal DNA recombines each generation, the number of markers shared with a specific ancestor is reduced by half each generation.
Heroin acts as a lipid soluble âprodrugâ within the brain, meaning that heroin itself is inactive but it is metabolized into an active form within the body. After crossing the blood-brain barrier, heroin is metabolized into morphine, which actively binds to opiate receptors in the brain producing the high.
(F) Urine Drug Excretion Pattern of Heroin addict (smoked heroin) (â¢ morphine) (â¢ codeine). We have made a study of the urinary excretion pattern of a known heroin addict. After having smoked about 60 mg of heroin in 5 cigarettes, the urine excretion of total morphine and codeine are as shown in graphs F (i).