Which of the following lists steps of mrna production in eukaryotes in the correct order? transcription, 5' cap addition, addition of poly-a tail, passage through nuclear membrane, exon splicingtranscription, addition of poly-a tail, 5' cap addition, exon splicing, passage through nuclear membrane5' cap addition, addition of poly-a tail, exon splicing, passage through nuclear membrane, , 5' cap addition, addition of poly-a tail, exon splicing, passage through nuclear membrane

The correct order is: Transcription, 5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membrane

mRNA must undergo posttranscriptional modification in order to produce a mature, functional RNA molecule that can then leave the nucleus and be translated.

•5’cap addition or 5’ capping - It protects the mRNA from 5' degradation by exonucleases. Cap is also involved in ribosomal binding.

•Polyadenilation or addition of poly(A) tail – It also protects mRNA from degradation of 3’exonucleases.  A long poly(A) tail can also increase translation

•Exon splicing-This is a process in which introns are removed from the pre-mRNA and the exons connected to form a continuous molecule of mature mRNA.

want or the answer

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