Scientists visually tracked an RNA intron jumping from a predator to its prey, revealing insights into gene transfer across species.
About Intron:
In some genes, not all of the DNA sequence is used to make protein.
Introns are noncoding sections of an RNA transcript,or the DNA encoding it, that are spliced out before the RNA molecule is translated into a protein.
The sections of DNA (or RNA) that code for proteins are called exons.
Following transcription, new, immature strands of messenger RNA, called pre-mRNA, may contain both introns and exons.
The pre-mRNA molecule thus goes through a modification process in the nucleus called splicing during which the noncoding introns are cut out and only the coding exons remain.
Splicing produces a mature messenger RNA molecule that is then translated into a protein.
Introns are also referred to as intervening sequences.
The length of introns differs among species and genes in the same species; mammals and flowering plants have multiple introns and are longer than exons.
Introns may contain sequences that regulate how genes are expressed or transcribed and how mRNA is processed.
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