The twisted ladder shape is really a "double helix". The four substances are Guanine, Adenine, Cytosine, and Thymine.
sugar and phosphate
The steps are made from the 4 types of nucleobases.
You are probably thinking of DNA. The base pairs link the two strands together like a series of steps. However, since it is helical, it might be more accurate to compare it to a spiral staircase.
it is a ladder.
Watson and Crick's Name for the twisted ladder of DNA
is tow cell (s) mama and dad
adenine, thymine, guanine, and cytosine
Phosphate and sugar make up the sides of a DNA ladder.
sugar and phosphate
The phosphate groups and deoxyribose molecules makes up the DNA ladder.
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules.
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules. The DNA bases attach to the sugar molecules.
Heck No!
The steps are made from the 4 types of nucleobases.
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules. The DNA bases attach to the sugar molecules.
The Base Pairs
The sugar phosphate backbone.