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DNA is composed of four nitrogenous bases: Adenine, Thymine, Guanine, and Cytosine. Adenine and Guanine are purine bases, while Cytosine and Thymine are pyrimidine bases. Since purine bases mate with pyrimidine bases, Adenine attaches to Thymine, while Guanine attaches to Cytosine.

As DNA is turned into RNA, the nitrogenous base Thymine is replaced with the base Uracil.

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13y ago
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16y ago

a chemical copound is formed when two or more atoms of two or more different elements combine chemically and form molecules. so atoms and molecules are the parts of a compound

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12y ago

Molecules are composed of atoms many of them. These atoms are held together by sharing each others outer electrons

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14y ago

The prefix, which is usually the name of the metal within the formula, and the suffix, which is usually the nonmetal base name followed by -ide.

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13y ago

A molocule contain two or more atoms.

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10y ago

Proteins are build up of amino acids.

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Q: What are the parts of the protein molecule?
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