Which of the following is classified as a long noncoding RNA?

Study for the A2 Genetic Control of Proteins Test. Engage with flashcards and multiple choice questions, each question is accompanied by hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

Which of the following is classified as a long noncoding RNA?

Explanation:
Long noncoding RNAs are transcripts longer than about 200 nucleotides that do not encode proteins but can regulate gene expression in multiple ways. This length criterion and noncoding nature distinguish them from other noncoding RNAs. Ribosomal RNA forms the ribosome and is essential for protein synthesis, transfer RNA carries amino acids to the ribosome, and microRNA are short regulators of gene expression (~22 nucleotides). Because it fits the category of a long, noncoding transcript, the lncRNA option is the correct choice.

Long noncoding RNAs are transcripts longer than about 200 nucleotides that do not encode proteins but can regulate gene expression in multiple ways. This length criterion and noncoding nature distinguish them from other noncoding RNAs. Ribosomal RNA forms the ribosome and is essential for protein synthesis, transfer RNA carries amino acids to the ribosome, and microRNA are short regulators of gene expression (~22 nucleotides). Because it fits the category of a long, noncoding transcript, the lncRNA option is the correct choice.

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