Multiple Choice
Which of the following is not true about the codon code?
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5. DNA to RNA to Protein
tRNA, rRNA and the Codon Code
Multiple Choice
Which RNA molecules make up part of the ribosome and play a structural and catalytic role in translation?
A
mRNA (messenger RNA)
B
snRNA (small nuclear RNA)
C
tRNA (transfer RNA)
D
rRNA (ribosomal RNA)
Verified step by step guidance1
Understand the role of different RNA types in the cell: mRNA carries the genetic code from DNA to the ribosome; tRNA brings amino acids to the ribosome during protein synthesis; snRNA is involved in RNA splicing within the nucleus.
Focus on the ribosome, the cellular machinery responsible for protein synthesis, which is composed of both proteins and RNA molecules.
Recognize that ribosomal RNA (rRNA) is a key component of the ribosome, providing both structural support and catalytic activity necessary for translation.
Recall that rRNA molecules form the core of the ribosome's structure and catalyze the formation of peptide bonds between amino acids, a function known as ribozyme activity.
Conclude that among the RNA types listed, rRNA is the one that makes up part of the ribosome and plays both structural and catalytic roles in translation.
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