TRANSPOSON Meaning and
Definition
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A transposon, also known as a transposable element, is a specific type of genetic sequence that is capable of shifting its position within the genome of an organism. It is essentially a mobile DNA fragment that can move from one location to another within an organism's DNA. Transposons have the ability to "jump" or transpose themselves into new sites on the genome, leading to changes in the genetic composition of an organism.
Transposons were initially discovered in bacteria but have been found to exist in various organisms, including plants, animals, and humans. They are present in large numbers within genomes, accounting for a significant portion of an organism's total DNA.
These genetic elements can have diverse structures and mechanisms of movement. Some transposons move by a "cut-and-paste" mechanism, where they are excised from their original position and inserted into a different location. Others undergo a "copy-and-paste" mechanism, where a new copy of the transposon is created and inserted into a separate site while the original copy remains intact.
Transposons are known to contribute to genome evolution by introducing genetic variations. They can impact the expression of genes, disrupt gene structures, promote DNA rearrangements, or cause chromosomal rearrangements. Therefore, transposons are considered to be important drivers of genetic diversity and genomic plasticity.
Understanding transposons and their activity is crucial as they can influence the function and regulation of genes, potentially leading to the development of diseases or playing a role in evolutionary processes.
Common Misspellings for TRANSPOSON
- rransposon
- fransposon
- gransposon
- yransposon
- 6ransposon
- 5ransposon
- teansposon
- tdansposon
- tfansposon
- ttansposon
- t5ansposon
- t4ansposon
- trznsposon
- trsnsposon
- trwnsposon
- trqnsposon
- trabsposon
- tramsposon
- trajsposon
Etymology of TRANSPOSON
The word "transposon" is a blend of two terms: "transposable" and "element".
- "Transposable" is derived from "transpose", which means to move or transfer something to a different place or position.
- "Element" refers to a fundamental or essential part of something.
"Transposon" was coined by the American geneticist Barbara McClintock in 1950. She used this word to describe genetic elements that have the ability to move within a genome or to different positions on a chromosome, hence the combination of "transposable" and "element". These transposons are sequences of DNA that can change their location within a genome, leading to genetic variation and potentially influencing gene expression.
Similar spelling words for TRANSPOSON
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