Answer:
To determine the first three amino acids coded by a new mutated sequence, we need to first identify the codons in the sequence and then use the codon table to determine the corresponding amino acids.
Here is a standard codon table that shows the amino acid abbreviations and the codons that code for them:
Amino Acid | 3-Letter | 1-Letter |Codons
Alanine Ala A GCU, GCC, GCA, GCG
Arginine Arg R CGU, CGC, CGA, CGG, AGA, AGG
Asparagine Asn N AAU, AAC
Aspartic acid Asp D GAU, GAC
Cysteine Cys C UGU, UGC
Glutamine Gln Q CAA, CAG
Glutamic acid Glu E GAA, GAG
Glycine Gly G GGU, GGC, GGA, GGG
Histidine His H CAU, CAC
Isoleucine Ile I AUU, AUC, AUA
Leucine Leu L UUA, UUG, CUU, CUC, CUA, CUG
Lysine Lys K AAA, AAG
Methionine Met M AUG
Phenylalanine Phe F UUU, UUC
Proline Pro P CCU, CCC, CCA, CCG
Serine Ser S UCU, UCC, UCA, UCG, AGU, AGC
Threonine Thr T ACU, ACC, ACA, ACG
Tryptophan Trp W UGG
Tyrosine Tyr Y UAU, UAC
Valine Val V GUU, GUC, GUA, GUG
Let's say we have a mutated DNA sequence like this: AUGUUCAGCUUCAAG
The first step is to divide this sequence into codons, each consisting of three nucleotides. In this case, we have:
AUG UUC AGC UUC AAG
Now, we can use the codon table to determine the amino acid corresponding to each codon:
AUG: Methionine (Met)
UUC: Phenylalanine (Phe)
AGC: Serine (Ser)
UUC: Phenylalanine (Phe)
AAG: Lysine (Lys)
Therefore, the first three amino acids coded by this new mutated sequence are Met, Phe, and Ser.