Trefoil Möbius

A simple Moebius trefoil knot. It can simply be obtained by twisting a band of paper for three half-turns (instead of one single half-turn for mainstream Moebius rings), and then connecting the two ends. As the Moebius ring, it is non invertible (has only one face).

You can have a look below to the single and double DNA helix trefoil Moebius based "Cycle of life" (and variants):

• The single DNA helix trefoil Moebius "Cycle of life".
• A more radical variant which bluntly reminds that the cycle of life may terminate.
• The double trefoil DNA which shows the connection between the trefoil Moebius and the torus.