Identify the amino acid carried by tRNAs with the following anticodon sequences.
5′-AAA-3′

Verified step by step guidance

1. Understand the relationship between codons and anticodons: Anticodons are sequences of three nucleotides on tRNA that are complementary to the codons on mRNA. The anticodon pairs with the mRNA codon during translation to ensure the correct amino acid is added to the growing polypeptide chain.
2. Determine the complementary mRNA codon: The given anticodon is 5′-AAA-3′. To find the complementary mRNA codon, remember that RNA base pairing rules are A (adenine) pairs with U (uracil), and G (guanine) pairs with C (cytosine). Therefore, the complementary mRNA codon is 5′-UUU-3′.
3. Identify the amino acid corresponding to the mRNA codon: Use the genetic code table to determine which amino acid is specified by the mRNA codon 5′-UUU-3′. Each codon corresponds to a specific amino acid.
4. Verify the amino acid: Double-check the genetic code table to ensure the correct amino acid is identified for the codon 5′-UUU-3′. This step ensures accuracy in translation.
5. Conclude the process: The amino acid carried by the tRNA with the anticodon 5′-AAA-3′ is the one specified by the mRNA codon 5′-UUU-3′. This completes the identification process.

Key Concepts

tRNA and Anticodons

Transfer RNA (tRNA) is a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein. Each tRNA has a specific anticodon sequence that pairs with a corresponding codon on the mRNA. The anticodon is crucial for ensuring that the correct amino acid is added during protein synthesis.

Codon-Amino Acid Relationship

In the genetic code, a codon is a sequence of three nucleotides on mRNA that specifies a particular amino acid. The relationship between codons and amino acids is defined by the genetic code, which is universal among most organisms. Understanding this relationship is essential for determining which amino acid corresponds to a given tRNA anticodon.

Amino Acid for Anticodon AAA

The anticodon sequence 5′-AAA-3′ pairs with the mRNA codon 3′-UUU-5′, which codes for the amino acid phenylalanine. This pairing is a key aspect of translation, where the tRNA delivers the appropriate amino acid to the growing polypeptide chain based on the mRNA sequence.