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Answer:

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

The nitrogenous bases as a part of the nucleotide is what determines the code of a DNA molecule.

WHAT IS DNA:

  • DNA, also called deoxyribonucleic acid, is a biological molecule that stores genetic information in living cells.

  • DNA is a polymer molecule that is made up of monomers called nucleotides. These nucleotides further comprises of nitrogenous bases, phosphate group and pentose sugar.

  • The nitrogenous bases are Adenine, Guanine, Thymine and Cytosine. The order of these bases determine the code of a DNA molecule.

Therefore, the nitrogenous bases as a part of the nucleotide is what determines the code of a DNA molecule.

Learn more about nitrogenous bases at: https://brainly.com/question/206904