Draw a protein$-$encoding gene containing $5$ exons with the START codon being in exon $2$ and the STOP codon being in exon $5.$ Label each exon and intron and show the position of the $5$ and $3-$untranslated regions $($UTRs$).$ Note the position of the promoter and the transcription start site $($TSS or $+1).$ Show the primary transcript of this gene and then the messenger RNA $($mRNA$)$ produced after RNA splicing has occurred. Show the rough size of the protein produced by your gene