Which molecule's sequence is read to determine the amino acid sequence?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

Which molecule's sequence is read to determine the amino acid sequence?

Explanation:
During protein synthesis, the ribosome reads the messenger RNA sequence to determine the order of amino acids in the protein. Each codon on the mRNA specifies a particular amino acid, and transfer RNA brings that amino acid to the ribosome by matching its anticodon to the codon. DNA serves as the original blueprint and is transcribed into mRNA, but the translation step uses the mRNA sequence, not the DNA, to lay down the amino acids. rRNA is part of the ribosome and helps catalyze the process, but it does not provide the amino acid sequence itself.

During protein synthesis, the ribosome reads the messenger RNA sequence to determine the order of amino acids in the protein. Each codon on the mRNA specifies a particular amino acid, and transfer RNA brings that amino acid to the ribosome by matching its anticodon to the codon. DNA serves as the original blueprint and is transcribed into mRNA, but the translation step uses the mRNA sequence, not the DNA, to lay down the amino acids. rRNA is part of the ribosome and helps catalyze the process, but it does not provide the amino acid sequence itself.

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