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Multiple Choice
Which statement is true of messenger RNA (mRNA)?
A
mRNA is responsible for carrying genetic information from DNA to the ribosome.
B
mRNA is involved in the catalysis of peptide bond formation during protein synthesis.
C
mRNA is a type of nucleic acid that stores genetic information in the nucleus.
D
mRNA is a double-stranded molecule that forms the structure of ribosomes.
Verified step by step guidance
1
Understand the role of mRNA in the cell: mRNA, or messenger RNA, is a type of RNA that carries genetic information from DNA to the ribosome, where proteins are synthesized.
Differentiate between mRNA and other types of RNA: Unlike ribosomal RNA (rRNA) and transfer RNA (tRNA), mRNA does not play a direct role in the catalysis of peptide bond formation or the structure of ribosomes.
Recognize the structure of mRNA: mRNA is a single-stranded molecule, which distinguishes it from DNA, which is typically double-stranded.
Identify where mRNA functions: mRNA is synthesized in the nucleus and then transported to the cytoplasm, where it serves as a template for protein synthesis at the ribosome.
Clarify the storage of genetic information: While mRNA carries genetic information, it does not store it permanently; this role is fulfilled by DNA in the nucleus.