List the following events in the preRNA processing of a one introntwo 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 premRNA 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 toge