DNA strands are the copies of each other and have the same homochiral structure, but they are located in the reversed mirror image position of each other in DNA helix.

DNA strands are the  copies of each other and have the same homochiral structure, but they are located in reversed mirror images each other in DNA helix.

 

DNA strands are copies of each other and have the same homochiral structure, but they are located in the reversed mirror image position of each other in DNA helix.This figure shows the reversed mirror image position of the leading strand.In other words, it is the localization of the lagging strand in the DNA helix.  

DNA consists of two antiparallel strands: one runs 5'→3', the other 3'→5'.Sipiral strands may be  located in the reversed mirror image position of each other in DNA structure.

In addition ,DNA might  be  located in the cells of the right and left body halves of living things, reversed mirror image position of each other.

Antiparallel Orientation of DNA strands

One strand runs from the 5′ to 3′ direction, and the other runs 3′ to 5′. DNA is composed of two strands forming a double helix, built from repeating units called nucleotides. Each nucleotide consist of phosphate group, a deoxyribose sugar, and a nitrogenous base.

Nucleotides are linked by phosphodiester bonds between the phosphate of one nucleotide and the 3' carbon of the sugar in the next.This creates a sugar-phosphate backbone with directionality: one end is the 5' end (phosphate group), and the other is the 3' end (hydroxyl group).DNA consists of two antiparallel strands: one runs 5'→3', the other 3'→5'.The strands are held together by hydrogen bonds between complementary bases .A pairs with T (2 hydrogen bonds)and G pairs with C (3 hydrogen bonds)

 I have no objection to our classical knowledge about DNA structure summarized above.
In this article, my view is that " DNA are located as reversed mirror images of each other in the cells of the Right and left body halves.

DNA strands are also the  copies of each other and have the same structure, but they are located reversed position mirror images of each other in DNA helix. 

Strands are homochiral and slightly asymmetrical spirals just like our right and left hands.

Reversed mirror-image localizastion  of the DNA in the R/L body cells ensures that the right and left body halves of living things are homochiral, mirror-images of each other.In transcription and replication, the located of DNA strands in reversed mirror-image position of each other may be an important and obligatory.

All the hands are palmar side of the R- hand in this figure. The two hands at the top of the figure points mirror image in reversed position of DNA in R/L body parts. The leading strand is blue, and the lagging strand is red. R- blue hand thumb and L-red hand thumb point to strands directions in the L/R body parts and they show directional changing of the strands.

When the R- DNA in the cells on the R-half of the body parts is rotated 180 degrees down to up in vertical position, the R-handedness cannot change but the directionality can be changed in opposite direction. DNA strands are located reversed mirror-image positions of each other in DNA structure. Direction of the DNA strands has also changed in the opposite direction in the R/L body parts. If the leading strand may be positioned in the 5'-3' direction in the R- body half, it is in the 3'-5'opposite direction in the L- body half. A single strand is copied in protein synthesis. When the mRNA is transcribed from the leading strand, it must be oriented oppositely positioned in the R/L body halves.

  The mirror image reversed localization of DNA in the R/L body halves may create a R/L asymmetric mirror image homochiral body structuring. This phenomenon may provide an explanation for the always use of L-handed amino asides in protein synthesis.