INTERVENING SEQUENCES Meaning and
Definition
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Intervening sequences, also known as introns, refer to non-coding segments of DNA or RNA that are found within the coding region of a gene. These sequences are transcribed into precursor mRNA but are subsequently removed during the process of RNA splicing, before the mature mRNA molecules are translated into proteins.
Intervening sequences were initially regarded as seemingly "junk DNA" for their lack of known function, as they do not contribute directly to protein synthesis. However, further research has shown that these segments play essential roles in gene regulation, alternative splicing, and the evolution of complex organisms.
The presence of intervening sequences in genes allows for the generation of multiple alternative mRNA transcripts through a process called alternative splicing. This process enables the production of different protein isoforms from a single gene, increasing the diversity and complexity of the proteome.
Intervening sequences may also contain regulatory elements, such as enhancers or silencers, which can influence the expression of a gene. Their removal or inclusion during RNA splicing can impact gene expression levels and cellular functions.
In summary, intervening sequences are non-coding segments of DNA or RNA that are transcribed into precursor mRNA but removed during RNA splicing. They play vital roles in gene regulation, alternative splicing, and the generation of protein diversity, contributing to the complexity of organisms.
Common Misspellings for INTERVENING SEQUENCES
- untervening sequences
- jntervening sequences
- kntervening sequences
- ontervening sequences
- 9ntervening sequences
- 8ntervening sequences
- ibtervening sequences
- imtervening sequences
- ijtervening sequences
- ihtervening sequences
- inrervening sequences
- infervening sequences
- ingervening sequences
- inyervening sequences
- in6ervening sequences
- in5ervening sequences
- intwrvening sequences
- intsrvening sequences
- intdrvening sequences
- intrrvening sequences
Etymology of INTERVENING SEQUENCES
The word "intervening" originates from the Latin word "intervenire", which is a combination of "inter" meaning "between" and "venire" meaning "to come". It essentially denotes something that occurs between or comes in between two things or events.
The word "sequences" originates from the Latin word "sequens", which means "following" or "to follow". It refers to a series of related events, actions, or items that follow one after another in a particular order.
When combined, "intervening sequences" suggests a set of sequences that come in between or follow one after another in a particular order, creating a pattern or structure. In specific contexts like molecular biology, "intervening sequences" commonly refers to segments of DNA or RNA that are present between the coding regions, also known as exons.
