Which of the following causes excessively high levels of toxic chemicals in fish-eating birds? 

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#Question id: 168

#XL - T Zoology

 The peptide alanylglutamylglycylalanylleucine has:

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#Question id: 169

#XL - T Zoology

 An octapeptide composed of four repeating glycylalanyl units has:

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#Question id: 170

#XL - T Zoology

Desmosine, an uncommon amino acid is derived from

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#Question id: 171

#XL - T Zoology

An amino acid with two chiral carbon atoms

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#Question id: 172

#XL - T Zoology

Which amino acid is least likely to participate in acid-base catalysis?

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#Question id: 175

#XL - T Zoology

The ionic charges associated with a protein molecule are ________.