In: Biology
Consider the codon GGG. List all the possible single-nucleotide replacements and the corresponding amino acid.
Possible single-nucleotide replacements and corresponding amino acids by replacing the first nucleotide of codon GGG are shown in the following table.
| Possible single-nucleotide replacements by replacing the first nucleotide of codon GGG | Corresponding amino acid |
| CGG | Arginine |
| AGG | Arginine |
| UGG | Tryptophan |
Possible single-nucleotide replacements and corresponding amino acids by replacing the second nucleotide of codon GGG are shown in the following table.
| Possible single-nucleotide replacements by replacing the second nucleotide of codon GGG | Corresponding amino acid |
| GCG | Alanine |
| GAG | Glutamate |
| GUG | Valine |
Possible single-nucleotide replacements and corresponding amino acids by replacing the third nucleotide of codon GGG are shown in the following table.
| Possible single-nucleotide replacements by replacing the third nucleotide of codon GGG | Corresponding amino acid |
| GGC | Glycine |
| GGA | Glycine |
| GGU | Glycine |
Hence, possible single-nucleotide replacements of the codon GGG are CGG, AGG, UGG, GCG, GAG, GUG, GGC, GGA, and GGU. Their corresponding amino acids are shown in previous tables.