Modelová Otázka ID 2918 - 
Co znamená, když je genetický kód degenerovaný?
Správná odpověď je: B
Aminokyselina může být kódována i více než jedním kodonem. Zatímco proteinogenních aminokyselin je 22 (20 základních a 2 odvozené), celkový počet kodonů je 64. V tomto počtu kodonů je obsažen také start kodon AUG (kóduje methionin) a 3 stop kodony UGA, UAA a UAG, které naopak nekódují žádnou aminokyselinu. U bakterií se vyskytuje také proteinogenní aminokyselina N‑formylmethionin (kódovaná jako methionin start kodonem AUG), kterou eukaryota k tvorbě proteinů nevyužívají.
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