The R group is what allows amino acids to form macromolecules with different properties. every amino acid has the same basic structure, the only difference is what the R group is made up of. The similarities allow the amino acids to form a chain while the differences allows them to have different functions. Hope this helped!
It depends on what you’re learning, a possible answer is bias.
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D. They rented farmland from white landowners.
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DNA Synthesis the number of chromosomes is altered so that there are either too many or too few chromosomes in the cells.
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