Which of the following is an example of a non-coding 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 an example of a non-coding RNA?

Explanation:
Non-coding RNAs regulate gene expression without being translated into proteins. MicroRNA is a small RNA that is transcribed from DNA but not translated; instead it binds to target messenger RNAs and blocks their translation or promotes their degradation, helping control which proteins are produced. This makes it a clear example of a non-coding RNA. In contrast, messenger RNA carries the code to make a protein, a protein is the product of translation, and DNA is the genetic material that encodes information but is not itself an RNA molecule.

Non-coding RNAs regulate gene expression without being translated into proteins. MicroRNA is a small RNA that is transcribed from DNA but not translated; instead it binds to target messenger RNAs and blocks their translation or promotes their degradation, helping control which proteins are produced. This makes it a clear example of a non-coding RNA. In contrast, messenger RNA carries the code to make a protein, a protein is the product of translation, and DNA is the genetic material that encodes information but is not itself an RNA molecule.

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