The factor that maintains the same distance between strands in a DNA molecule is the pairing of single ringed bases with double ringed bases. This forms the helix of the DNA structure.
pairing of single-ringed bases with double-ringed bases
Explanation;
DNA is a type of nucleic acid, the other being RNA. It stores the genetic information of an organism that is passed from one generation to another.
DNA is a double stranded molecule, which is made up of two strands, that is the leading and the lagging strand which are coiled to double a double helix.
DNA is made up of nucleotide bases, Guanine, cytosine, adenine and thymine, also contains a sugar, deoxyribose sugar, and a phosphate group.
The pairing of single-ringed bases with double-ringed bases maintains the same distance between the two strands in a DNA molecule.
