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Unsuccessful transfer or abortive transfer is any
Unsuccessful transfer or abortive transfer is any bacterial
Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the ...
DNA
Deoxyribonucleic acid (; DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of al ...
transfer from donor cells to recipient cells that fails to be replicated during cell division. (In other words, the incoming DNA does not become inherited.) This may be due to:
*Failure of the incoming DNA to form a circular molecule or to integrate into one;
*Loss of a maintenance system (see plasmid partition system).
As a result of the abortive transfer, among all daughter cells of the recipient cell, only one cell will be holding the transferred DNA. Gene
In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protei ...
s that are located on an abortively transferred piece of DNA can still express
Express, The Expresss or EXPRESS may refer to:
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in the recipient cell.
Abortive transfer can happen after transduction, transformation, or conjugation -- all of the three main types of genetic exchange in bacteria. Abortive transduction is especially frequent.
Dictionary definition
Rieger, Michaelis, and Green, in 1976 stated:See also
*Gene expression
Gene expression is the process (including its Regulation of gene expression, regulation) by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, proteins or non-coding RNA, ...
*Plasmid
A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. They are most commonly found as small circular, double-stranded DNA molecules in bacteria and ...
* Transduction
References
{{reflist Molecular genetics Gene expression