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.
The main ingredients in opium are morphine and codeine. The opium is refined into morphine, and then the morphine, with the addition of glacial acetic acid, is turned into heroin. Alot of people do not know, that heroin, when metabolized, is morphine. By the time it hits your brain it is morphine.