The rungs on a ladder are held between the rails.
rails
what holds the sides of the DNA ladder together
The rungs are perpendicular to both sides
phosphate
use glue
No; the rungs of a ladder and the sides of a ladder intersect. Skew lines do not intersect.
The centromere is the area at the center of a chromosome that holds the two chromatids together.
Yes
I belive that would be a Sugar-Phosphate.
The rails of DNA are made up of pairs of sugars and phosphates. The middle of the strand of DNA or the rungs are made of nucleotides and bases of codons, such as ATCG base pairs. The bond that holds the DNA together is a hydrogen bond.
"There are four bases, adenine, guanine, cytosine, and thymine, in DNA. The bases give DNA their variety. The bases are the "rungs" in the double helix ladders and the "handles"of the double helix are composed of deoxyribose sugar and phosphate. Hydrogen bonds hold all of these components together." (This answer was copy and pasted from another answer.)
The rungs are made of 4 different types of bases. The bases letters are A,T,G, and C. Only A and T can go together, and only G and C can go together.