Rap gene, also known as rhythmicity associated protein gene, is a term used in genetics to describe a specific gene that is associated with the regulation of circadian rhythms. However, if we are to explore synonyms for this term, we must delve into the world of rap music. In the context of music, rap gene could mean an individual's innate ability or talent for rapping, a form of lyrical storytelling. Synonyms for rap gene might include "rap skill", "rapping aptitude" or "inherent rhyming ability". These synonyms highlight the natural gift or inclination someone might possess when it comes to the art of rapping and crafting intricate verses.