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单词 transposon
释义

transposon

/transˈpəʊzɒn / /trɑːns-/ /-nz-/
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.In fact, in evolutionary terms, it is likely that such sequences have been more successful as transposons than as host genes....
  • Thus we were able to clone the DNA sequence that flanked the transposon insertion using plasmid rescue.
  • Several DNA sequences that show sequence similarity to transposons were isolated from these sex chromosomes.

Origin

1970s: from transposition + -on.

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更新时间:2025/3/25 4:02:55