.....for I am fearfully and wonderfully made: marvellous are thy works......
Psalm 139:14
"Most people know of the double helix (twisted ladder) structure of
DNA, discovered in 1953. Scientists in the 1990s found another 
structure
in the test-tube, called an ‘i-motif’. Now scientists have shown that
this structure exists inside human cells. “The i-motif is a
four-stranded ‘knot’ of DNA”, explained Marcel Dinger, one of the
scientists involved.
These structures
---appear more frequently when cells are very active,
such as during cell division.
---The structures also seem to relate to the
control of genes, occurring in the regions of the DNA that determine if a
gene is to be ‘read’ by the cell.
All this adds yet another ‘twist’ to the complexity of DNA and
underlines the ever-growing difficulty of explaining the origins of
cells just by physics and chemistry." CMI