The three types of RNA discussed are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). mRNA forms during transcription when RNA polymerase synthesizes RNA from the DNA template. Post-transcriptional modification is required for the mRNA to mature and exit the nucleus. Once in the cytoplasm, the mRNA will bind to a ribosome composed of rRNA and proteins. The ribosome will then recruit tRNA molecules to the complex in order to synthesize the protein product. Each amino acid binds to a specific kind of tRNA. tRNA brings the amino acids to the growing end of the newly forming polypeptide at the ribosome by binding to the codon of the mRNA.

There is only one codon that signals the start of translation: AUG. This codon codes for the amino acid methionine so this amino acid will also be at the N-terminus of all proteins, however it may be removed and/or modified later.

There is only one codon that signals the start of translation: AUG. This codon codes for the amino acid methionine so this amino acid will also be at the N-terminus of all proteins, however it may be removed and/or modified later.

The three types of RNA discussed are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). mRNA forms during transcription when RNA polymerase synthesizes RNA from the DNA template. Post-transcriptional modification is required for the mRNA to mature and exit the nucleus. Once in the cytoplasm, the mRNA will bind to a ribosome composed of rRNA and proteins. The ribosome will then recruit tRNA molecules to the complex in order to synthesize the protein product. Each amino acid binds to a specific kind of tRNA. tRNA brings the amino acids to the growing end of the newly forming polypeptide at the ribosome by binding to the codon of the mRNA.

Every codon is composed of three RNA nucleobases, and codes for a specific amino acid; however, there can be multiple codons that code for one amino acid. The start codon, AUG, signals the beginning of translation and codes for methionine.

Each tRNA contains the anticodon for a specific mRNA codon and carries the amino acid corresponding to that codon to ribosomes during translation. mRNA is produced by transcription from DNA, and ribosomes translate it into proteins. Multiple codons can code for a single amino acid, and so there can be several tRNA anticodons that could be used for a single amino acid.

The anticodon of any codon will be the RNA nucleotides that complement the codon sequence. In RNA, adenine (A) complements uracil (U) while cytosine (C) complements guanine (G). Hence, for the codon 5' AUG 3', the complements will be 3' UAC 5'. Note that many of the incorrect answers contain thymine (T), a nucleotide not found in RNA.

Each tRNA contains the anticodon for a specific mRNA codon and carries the amino acid corresponding to that codon to ribosomes during translation. mRNA is produced by transcription from DNA, and ribosomes translate it into proteins. Multiple codons can code for a single amino acid, and so there can be several tRNA anticodons that could be used for a single amino acid.

Every codon is composed of three RNA nucleobases, and codes for a specific amino acid; however, there can be multiple codons that code for one amino acid. The start codon, AUG, signals the beginning of translation and codes for methionine.

The anticodon of any codon will be the RNA nucleotides that complement the codon sequence. In RNA, adenine (A) complements uracil (U) while cytosine (C) complements guanine (G). Hence, for the codon 5' AUG 3', the complements will be 3' UAC 5'. Note that many of the incorrect answers contain thymine (T), a nucleotide not found in RNA.