answer as comprehensive as possible. Transcribed Image Text: The figure below shows the introns and exons found in gene X. The size of each exon and intron is shown as
well. A study on this organism found that two mature mRNA molecules are produced for this gene. One is 457
nucleotides in length, and the other is 439 nucleotides in length. Name the process responsible for producing
this variation. Also explain how these 457 and 439 nucleotide fragments were produced by referring to the
Hint: This organism produces a poly-A tail of 120 nucleotides.