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.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

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explanation:

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