[Answer] What are exons?

Answer: -remaining pieces that are spliced together to make the final mRNA

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What are exons? In molecular biology splicing is the editing of the nascent pre-messenger RNA (pre-mRNA) transcript in which introns are removed and exons are joined together (ligated). For nuclear-encoded genes splicing takes place within the nucleus either co-transcriptionally or immediately after transcription. Alternative splicing - Wikipedia Exon - Wikipedia Exon shuffling - Wikipedia Exon - Wikipedia Exon trapping or 'gene trapping' is a molecular biology technique that exploits the existence of the intron-exon splicing to find new genes. The first exon of a 'trapped' gene splices into the exon that is contained in the insertional DNA. This new exon contains the ORF for a reporter gene that can now be expressed using the enhancers that control the target gene. A scientist knows that a new gene has been trapped when the reporter gene is expressed. Exxon / ˈɛksɒn / is the brand name of the oil and natural resources company Exxon Corporation which was prior to 1972 known as Standard Oil Company of New Jersey. In 1999 Exxon Corporation merged with Mobil to form ExxonMobil. RNA splicing in molecular biology is a form of RNA processing in which a newly made precursor messenger RNA (pre-mRNA) transcript is transformed into a mature messenger RNA (mRNA). During splicing introns (non-coding regions) are removed and exons (coding regions) are joined together. For nuclear-encoded genes splicing takes place within the nucleus either during or immediately after transcription. For those eukaryotic genesthat contain introns splicing is usually required in order to crea… Exon shuffling is a molecular mechanism for the formation of new genes. It is a process through which two or more exons from different genes can be brought together ectopically or the same exon can be duplicated to create a new exon-intron structure. There are different mechanisms through which exon shuffling occurs: transposon ...

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