the two nucleotides and a double helix..100 percent tama jud ka..kcnhs ni gikan..
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The rungs of the ladder in a DNA molecule are made up of nitrogenous bases (adenine, thymine, guanine, and cytosine) that pair up with each other through hydrogen bonds. This base pairing forms the genetic code that carries the instructions for an organism's development and functioning. The sequence of these bases determines the genetic information stored in the DNA molecule.
Genes
On the side parts of the ladder-like DNA molecule, you will find the sugar-phosphate backbone, which provides structural support to the molecule. The sugar-phosphate backbone serves as the outer framework that holds the nitrogenous bases together in the DNA double helix.
DNA is a molecule so no.
DNA molecules are actually made up of nucleotides, which is the substance that is made up of three parts. Each nucleotide has a phosphate, a ribose sugar (five-carbon sugar) and a nitrogeneous base (purines-Adenine,Thymine or pyramidines-Guanine,Cytosine). Consider the DNA molecule as a twisted ladder (double helix). The sides of the ladder are actually the phosphate and ribose sugars, and the rungs of the ladder are complimentary nitrogeneous bases of each other. For example, if one side of the rung is the base Adenine, then the complimentary base will be Thymine, vice versa. It is the same for the pyramidines.
guanine, cytosine, thymine, adenine.