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Question
The genetic code is a sequence of ______ along a sugar-phosphate strand of a DNA molecule.
Fill in the Blanks
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Solution
The genetic code is a sequence of nitrogenous bases along a sugar-phosphate strand of a DNA molecule.
Explanation:
The genetic code is determined by the specific sequence of the four nitrogenous bases adenine (A), thymine (T), cytosine (C), and guanine (G), attached to the sugar- phosphate backbone. While the sugar and phosphate molecules provide the structural “rails” of the DNA ladder, they are identical throughout the molecule. It is the unique linear order of the bases that carries the biological information needed to build proteins, with every three bases forming a “codon" that specifies a particular amino acid.
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