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.
Share. 0. 0. 1. Heroin is a psychoactive opiate drug produced from morphine, a natural substance found in papaversomniferum (also known as the opium poppy plant). Due to the number of side effects associated with its use, as well as its addictive properties, heroin is an illegal drug.hare. 0. 0. 1. Heroin is a psychoactive opiate drug produced from morphine, a natural substance found in papaversomniferum (also known as the opium poppy plant). Due to the number of side effects associated with its use, as well as its addictive properties, heroin is an illegal drug.