Question: The promoter region of a gene is: 
 Options:  <1> The place of completion of the transcript. <2> The binding site of RNA polymerase during the initiation of mRNA synthesis. <3> The place of recognition to process primary transcripts. <4> A sequence located in the 5 'region of all mRNAs to initiate translation. <5> A sequence that is eliminated during RNA splicing.
2