RNA that carries instructions for assembling amino acids into proteins from DNA to other parts of the cell is known as what?

• A. Messenger RNA
• B. Ribosomal RNA
• C. Transfer RNA
• D. Small nuclear RNA

Answer: (A)

The RNA that carries instructions for assembling amino acids into proteins from DNA to other parts of the cell is messenger RNA. In gene expression, DNA is transcribed in the nucleus to messenger RNA, which contains codons that specify the order of amino acids. This message travels to ribosomes in the cytoplasm, where translation uses those codons to assemble the protein, with transfer RNA bringing the corresponding amino acids and ribosomal RNA helping form the ribosome. Other RNA types have different roles: ribosomal RNA is a structural and catalytic part of the ribosome, transfer RNA delivers amino acids, and small nuclear RNA participates in RNA processing.