Helix - Wikipedia
en.wikipedia.org › wiki › HelixA helix ( / ˈhiːlɪks /) is a shape like a corkscrew or spiral staircase. It is a type of smooth space curve with tangent lines at a constant angle to a fixed axis. Helices are important in biology, as the DNA molecule is formed as two intertwined helices, and many proteins have helical substructures, known as alpha helices.