Practice Quiz

Praxis II: Biology Content Knowledge Exam Prep

Category - Biology

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During which of the following processes is primary RNA converted into mature RNA?

I. Transcription
II. Translation
III. Posttranscriptional processing
  1. I only
  2. II only
  3. III only
  4. II and III only
  5. I, II, and III only
Explanation
Answer: C, The process in which primary RNA is converted to mature RNA is posttranscriptional processing. This process is necessary because RNA created by transcription is not ready for translation.

Key Takeaway: The process of transcription produces primary RNA which cannot be used in the translational process. Posttranscriptional processing serves two purposes. The modifications make the RNA transcript more readily recognizable by the molecules that facilitate the translation of RNA in to protein. Also, portions of the RNA that will not be used for translation are cleaved. As a result, the speed and efficiency of translation are improved.
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