In a gene, if a transcript is 15 kilobase long and mature mRNA is 7 kb, what happened in the process that resulted in the 8 kb difference?

hcbiochem2021-04-06T16:21:56Z

Transcripts are processed after transcription before becoming mature mRNAs. One major part of processing is the removal of introns from the transcript and the splicing of the coding exons together. So, 8 kb of introns were removed from the original transcript.