Quantum of Science

Najveća studija do danas o genetičkim osnovama ljudske seksualnosti otkrila je pet markera na ljudskom genomu koji su povezani s istopolnim seksualnim ponašanjem - ali nijedan od markera nije dovoljno pouzdan da predviđa nečiju seksualnost. Studija je objavljena u Science , pod naslovom " Large-scale GWAS reveals insights into the genetic architecture of same-sex sexual behavior ". Istina je da hiljade gena sa malim malim efektima imaju utjecaj na formiranje seksualnog ponašanja. Isto je i sa inteligencijom i ASD. Ne možemo poentirati na neki određeni gen i reći "to je to". Rezultati studije se temelje na genima gotovo 500.000 ljudi, kristaliziraju rezultate ranijih, manjih studija i potvrđuju mišljenje većine naučnika da, iako seksualne sklonosti imaju genetičku komponentu, niti jedan gen nema velik utjecaj na seksualno ponašanje. Naučnici sa Harvarda i MIT su došli do zaključka kako 8-25% homoseksualnog ponašanja ima korijene u genetici...ali čak i...

The word “sex” is usually associated with TV channels and web sites containing tricky content. However, in science, this term is a synonym for gender, male and female, but according to some new interpretations – gender is all those more or less expressed forms of gender ambiguity.  The emergence of gender is linked to the emergence of sexual reproduction, one of the most important moments in the evolution of the living world, and not without a reason: this process enabled gene recombination, and with that the genetic diversity in a species. Sexual reproduction allows for natural selection to occur and represents a strong evolutionary force. The oldest fossil proof of sexual reproduction comes from the Stenian era, a geological period 1.2 billion years ago, and is a specimen of a red algae species, called Bangiomorpha pubescens . However, people have been fascinated by sexual dimorphism even in the ancient ages; the existence of the female and male sexes, which were obv...