[...] One way in which DNA -- which, as everyone knows, takes the form of a double-helix (which looks like a twisted ladder) -- can replicate is by splitting the double helix up the middle into two pieces. Cut the rungs of the 'ladder', and the posts fall apart. But if the DNA is in the form of a closed circle, something interesting happens. When it is split down the middle, it will fall -- unlike our BILATERAL ribbon did --into TWO separate closed circular ribbons.
You can see how that works by making a bilateral ribbon (with one "full" twist of 360 degrees). If you cut it up the middle, the two bilateral pieces it falls into will be linked like the two links of a paper chain -- with one "cross over." Furthermore, as the number of full twists in the bilateral ribbon that you start with increases, the more times the two resulting ribbons will cross over each other. When you split a bilateral ribbon with 7 full twists, you get 7 "crossovers" in the two offspring ribbons -- which will look like the figure above [...]
The double-helix of DNA replicates by untwisting and separating its two strands, then each strand links with free available amino acids to form an exact duplicate of itself, creating a new double helix. While the linking between the bases along the helical strands, adenine, thymine, cytosine and guanine (A,T,C,G), is key-in-lock, forming AT, CG, TA or GC pairs, the overall resulting strands are exact duplicates of the original--mirror images. DNA strands are not complementary opposites; there isn't a male strand and a female strand or even a right strand and a left strand. The DNA molecule reproduces by reflection, by forming a mirror image of itself. DNA replicates, so to speak, "homosexually"