A1.2.4 - Bases in each nucleic acid that form the basis of a code

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Last updated 12:26 AM on 10/17/26
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5 Terms

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Basis ‍of the Genetic Code

  • DNA ‌and RNA store genetic ‍information using nitrogenous bases

  • Sequence ‌of these bases, ‌not the backbone, ‍that stores the code.

  • Each letter gives us information for each protein


<ul><li><p>DNA ‌and RNA store genetic ‍information using <strong>nitrogenous bases</strong></p></li><li><p><strong>Sequence ‌of these bases</strong><span style="color: lab(27.1134 -0.956401 -12.3224);">, ‌not the </span>backbone<span style="color: lab(27.1134 -0.956401 -12.3224);">, ‍that stores the code.</span></p></li><li><p><span style="color: lab(27.1134 -0.956401 -12.3224);">Each letter gives us information for each protein</span></p></li></ul><p></p>
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DNA Nitrogenous Bases

  1. Adenine (A)

  2. Thymine ‍(T)

  3. Cytosine (C)

  4. Guanine ‍(G)


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RNA Nitrogenous Bases

  • Same as DNA except thymine (T) = uracil (U)


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Central Dogma

  • 1. DNA stores the gene

  • 2. Transcription copies the gene into mRNA

  • 3. mRNA leaves the nucleus

  • 4. Ribosomes read the mRNA in codons

  • 5. tRNA brings amino acids

  • 6. Amino acids join to form a polypeptide

  • 7. The polypeptide folds into a functional protein


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mRNA

  • Messenger RNA