Removal of introns and joining of exons in a defined order during transcription is called

Biology
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#1

Removal of introns and joining of exons in a defined order during transcription is called :

  1. Looping
  2. Inducing
  3. Slicing
  4. Splicing
#2

The correct answer is “splicing.” Splicing involves the removal of introns and the joining together of exons in a defined order during transcription to create a mature mRNA molecule.

During the process of transcription in eukaryotic cells, a pre-mRNA molecule is initially synthesized from a DNA template. This pre-mRNA contains both exons (coding regions) and introns (non-coding regions). The exons are the segments of the pre-mRNA that will eventually be translated into proteins, while the introns are non-coding sequences that need to be removed.

The process of removing introns and joining exons to create a mature mRNA is called RNA splicing. RNA splicing is carried out by a complex molecular machine called the spliceosome, which is composed of proteins and small nuclear RNAs (snRNAs).