Multiple Choice
Which of the following pairs correctly matches a type of noncoding RNA with its primary function?
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15. Gene Expression
Introduction to Types of RNA
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Which type of RNA has three nitrogen bases at one end that are known collectively as an anticodon?
A
Messenger RNA (mRNA)
B
Small nuclear RNA (snRNA)
C
Transfer RNA (tRNA)
D
Ribosomal RNA (rRNA)
Verified step by step guidance1
Understand the role of RNA types: Messenger RNA (mRNA) carries genetic information from DNA to ribosomes, Ribosomal RNA (rRNA) forms the structural and functional components of ribosomes, Small nuclear RNA (snRNA) is involved in RNA splicing, and Transfer RNA (tRNA) helps in protein synthesis by carrying amino acids.
Learn the concept of codons and anticodons: Codons are sequences of three nitrogen bases on mRNA that specify amino acids, while anticodons are complementary sequences of three nitrogen bases on tRNA that pair with codons during translation.
Focus on tRNA: Transfer RNA (tRNA) has a specific structure that includes an anticodon region at one end and an amino acid attachment site at the other end.
Understand the function of the anticodon: The anticodon on tRNA binds to the complementary codon on mRNA during translation, ensuring the correct amino acid is added to the growing polypeptide chain.
Conclude that tRNA is the type of RNA with three nitrogen bases at one end collectively known as an anticodon, which plays a critical role in decoding mRNA during protein synthesis.
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