What is an intron?
Q: What is an intron?
A: An intron is a non-coding sequence in a gene that is removed by RNA splicing to get the final RNA product of a gene.
Q: What are exons?
A: Exons are sequences of coding DNA which are joined together in the final RNA after RNA splicing and code for amino acids in the final polypeptide.
Q: Where can introns be found?
A: Introns can be found in genes of most organisms and many viruses, including those that generate proteins, ribosomal RNA (rRNA), and transfer RNA (tRNA).
Q: When does RNA Splicing take place?
A: RNA Splicing takes place after transcription and before translation.
Q: What do introns do?
A: Introns are parts of a gene which are discarded; they are non-working bits.
Q:What do exons do?
A:Exons are parts of a gene which are expressed; they code for amino-acid sequences in a protein.
Q:Who discovered introns ?
A:The discovery of introns led to the Nobel Prize in Physiology or Medicine in 1993 for Phillip Sharp and Richard Roberts. The term intron was introduced by American biochemist Walter Gilbert.
