Question

Which of the following is untrue about translation and transcription?

(a) The first is capping is at the 5’ end of the transcript which involves methylation at the initial residue of the RNA

(b) The splicing process involves a large RNA-protein complex called spliceosome

(c) The second event is splicing, which is the process of removing exons and joining introns

(d) The second event is splicing, which is the process of removing introns and joining exons

The question was asked in quiz.

My question is from Gene Prediction in Eukaryotes in chapter Gene and Promoter Prediction of Bioinformatics

Answer 1

Correct answer is (c) The second event is splicing, which is the process of removing exons and joining introns

To elaborate: The reaction requires intermolecular interactions between a pair of nucleotides at each end of an intron and the RNA component of the spliceosome. To make the matter even more complex, some eukaryotic genes can have their transcripts spliced and joined in different ways to generate more than one transcript per gene. This is the phenomenon of alternative splicing.