. Other researchers study the effects of small changes in the DNA sequence. These small changes trigger changes to genes. Genes that differ by a single nitrogen base are called SNPs (pronounced "snips"). SNPs cause many different disorders. What is true of all genes? A. They use the same kinds of tRNA during protein synthesis. B. They have the same DNA sequence. C. They have the same mRNA sequence. D. They code for proteins with the same amino acid sequence.
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D. They code for proteins with the same amino acid sequence.
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