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.
Heroin is processed from morphine, a naturally occurring opiate extracted from the seedpod of certain varieties of poppy plants.The opium poppy has been cultivated for more than five thousand years for a variety of medicinal uses. Heroin was first synthesized from morphine in 1874.From 1898 through to 1910, Bayer, the German pharmaceutical company, marketed it under the trademark name Heroin as a cough suppressant and as a non-addictive morphine substitute (until it was discovered that it rapidly metabolizes into morphine).eroin is processed from morphine, a naturally occurring opiate extracted from the seedpod of certain varieties of poppy plants.