Definition of transposon in English:

transposon

noun

Genetics
  • A chromosomal segment that can undergo transposition, especially a segment of bacterial DNA that can be translocated as a whole between chromosomal, phage, and plasmid DNA in the absence of a complementary sequence in the host DNA.

    Also called jumping gene
    • ‘Several DNA sequences that show sequence similarity to transposons were isolated from these sex chromosomes.’
    • ‘To me however, the most interesting components of junk DNA are the mobile genetic elements, also called jumping genes or transposons.’
    • ‘Thus we were able to clone the DNA sequence that flanked the transposon insertion using plasmid rescue.’
    • ‘The DNA transposons resemble typical bacterial transposons, they have terminal inverted repeats which enclose the transposase gene.’
    • ‘In fact, in evolutionary terms, it is likely that such sequences have been more successful as transposons than as host genes.’

Origin

1970s: from transposition + -on.

Pronunciation:

transposon

/transˈpəʊzɒn/