Question

Define introns and exons. exsamples of them

Answer 1

The nucleotide sequence within a gene is made up of introns and exons. Introns and Exons are both parts of the DNA and also part of the RNA via transcription.

Introns or intragenic regions are nucleotide sequences in the DNA that do not code for proteins. During the RNA processing after transcription, they are removed via RNA splicing and eventually broken down. Introns are commonly found in jawed vertebrates whereas they are rarely found in eukaryotes.

Exons are nucleotide sequences in DNA that code for proteins. During the RNA process in transcription, these nucleotides are not spliced and removed but rather they are turned into a long chain of mRNA. mRNA then undergoes RNA translation where the exon protein codes are translated to proteins in the Ribosome