Which of these amino acids is a polar, uncharged amino acid? (Select all that apply, if necessary.) A. B. D. E. M₂N²-CH-C_0° M₂N²-CH-C-00 ale CH₂ CH₂ CH-CH3 OH CH3 H₂N 010 CH₂ CH₂ CH₂ ΝΗ C=NH2 NH₂ amino acid A amino acid C amino acid D amino acid B H₂N- CH-C- CH₂ C=O об C. L H₂N-CH- CH₂ CH₂ C=O NH₂

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