
How I explain it is that betas are basically just normal humans. They have very weak, not heavily produced scents, but it is usually calming to alphas and omegas. Normally, males can’t get pregnant by alphas or impregnate omegas, and females have a regular menstrual cycle, but everyone writes it differently. Hierarchy-wise, they are above an omega but below an alpha. Most people tend to ignore betas because they don't see the purpose in them, or they don't know how to write them properly
Online tests though based on the writer people may show certain traits based on their secondary gender. Typically in writing Omegas tend to be more assertive and have leadership skills while omegas tend to be more soft-spoken and nurturing. Agsin though it depends on the writer. Personally I like writing omegas that are cinnamon rolls but can beat the crap out of someone when they’re pissed off