Question

All amino acids have the same basic structure. Which of these is part of that basic structure?
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A carboxyl group
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An amino group
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A central carbon
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All of these
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Answer 1

All of these.

The basic structure of an amino acid includes:

1. A carboxyl group (-COOH)
2. An amino group (-NH2)
3. A central carbon (also known as the alpha carbon)

Therefore, the correct answer is "All of these."