Regulation of nuclear export

Prevention of degradation by 5' exonucleases

Promotion of translation initiation

Stabilization of the mRNA

","creatorId":44,"createdAt":null,"updatedAt":"2025-08-21T13:21:41.146Z"} 22:{"id":2522,"questionId":1272,"text":"The three main functions of the poly-A tail on mRNA.","answer":"

Stabilization of the mRNA
Facilitation of its export from the nucleus
Assistance in the translation process

","creatorId":44,"createdAt":null,"updatedAt":"2025-08-21T13:21:41.146Z"} 23:{"id":2523,"questionId":1272,"text":"The three key processing steps for a eukaryotic pre-rRNA transcript.","answer":"

Cleavage by ribonucleases to yield intermediate-sized rRNAs (e.g., 28S, 18S, 5.8S in eukaryotes)
Modification of bases (e.g., methylation)
Binding with ribosomal proteins to form ribosomal subunits

","creatorId":44,"createdAt":null,"updatedAt":"2025-08-21T13:21:41.146Z"} 1f:["$20","$21","$22","$23"] 1c:{"id":1272,"quizId":180,"image":null,"width":null,"height":null,"creatorId":44,"createdAt":null,"updatedAt":"2025-08-21T13:21:41.139Z","tapes":"$1d","masks":"$1e","subQuestions":"$1f"} 25:[] 26:[] 28:{"id":2524,"questionId":1273,"text":"[Define] A primary transcript.","answer":"

A primary transcript is the initial, linear, and unprocessed RNA molecule synthesized from a DNA template during transcription.

","creatorId":44,"createdAt":null,"updatedAt":"2025-08-21T13:21:41.147Z"} 29:{"id":2525,"questionId":1273,"text":"RNA splicing.","answer":"

RNA splicing is the process of removing introns (non-coding sequences) from a primary transcript and joining together the exons (coding sequences) to form a mature mRNA molecule.

","creatorId":44,"createdAt":null,"updatedAt":"2025-08-21T13:21:41.147Z"} 2a:{"id":2526,"questionId":1273,"text":"The 5' cap.","answer":"

The 5' cap is a modified guanine nucleotide (7-methylguanosine) attached to the 5' end of a eukaryotic mRNA molecule via a 5'-5' triphosphate linkag

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