Aeronautics. a small air turbine with blades, like those of an airplane propeller, exposed on a moving aircraft and driven by the air, used to operate gasoline pumps, radio apparatus, etc. 4. an imaginary opponent, wrong, etc. (in allusion to Cervantes' Don Quixote): to tilt at windmills.
Genetic recombination is the production of offspring with combinations of traits that differ from those found in either parent.In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on from the parents to the offspring.Most recombination is naturally occurring.enetic recombination and recombinational DNA repair also occurs in bacteria and archaea, which use asexual reproduction. Recombination can be artificially induced in laboratory (in vitro) settings, producing recombinant DNA for purposes including vaccine development.
Definition. Homologous recombination is the exchange of DNA strands of similar or identical nucleotide sequence. It can be used to direct error-free repair of double-strand DNA breaks and generates sequence variation in gametes during meiosis.