List the following events in the pre-RNA processing of a one intron–two exon gen

Question

List the following events in the pre-RNA processing of a one intron–two exon gene in correct sequence order:
• Attachment of snRNP U1 to the 5' splice site
• Transesterification reaction at the branch point adenine
• Transcription of the DNA template into the pre-mRNA molecule
• Recognition and binding the 3' AAUAAA sequence by specific protein factors
• Cleavage at the poly(A) site
• Addition of the 5' cap
• Export to the cytoplasm
• Addition of the poly(A) tail
• Release of lariat structure
• Splicing together of exons

Explanation / Answer

ORDER
Addition of the 5' cap
Addition of the poly(A) tail Export to the cytoplasm
Attachment of snRNP U1 to the 5' splice site
Transesterification reaction at the branch point adenineRecognition and binding the 3' AAUAAA sequence by specific protein factors
Cleavage at the poly(A) site
Release of lariat structure
Splicing together of exons

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