genetic recombination

(redirected from Sexual recombination)

ge·net·ic re·com·bi·na·tion

1. the presence in progeny of combinations of genotypes and perhaps phenotypes, not present in either parent, resulting from crossing-over;
2. in microbial genetics, the inclusion of a chromosomal part or extrachromosomal element of one microbial strain in the chromosome of another; the interchange of chromosomal parts or genes between different microbial strains.

genetic recombination

see RECOMBINATION.
References in periodicals archive ?
Through sexual recombination, harmful mutations can be left behind and helpful ones consolidated into the genome.
Chan and his colleagues focused their work on the laboratory plant Arabidopsis, which has certain genetic mutations that allow it to produce diploid eggs without sexual recombination.
It is because the fungus that causes the wheat disease called stripe rust may use sexual recombination to adapt to resistant varieties of wheat.
There, mild to subtropical climates in areas where sunflowers grow allow the rust fungus, Puccinia helianthi, to skip its winter survival phase and evolve more rapidly via sexual recombination.
One quote makes the point: 'One respect in which [memes] are not like genes is that there is nothing obviously corresponding to chromosomes or loci or alleles or sexual recombination.
Variation comes forth via mutations and sexual recombination.
Lederberg won the Nobel Prize in Medicine at age 33 for scientific work started at age 20, which showed that bacteria can, in fact, reproduce through sexual recombination.
According to the Red Queen hypothesis, sexual recombination increases the probability of progeny escape from parasites adapted to common host genotypes by producing offspring with rare genotypes.
In a finite population reproducing by asexual fission, sexual recombination coupled with selection allows deleterious mutations to be eliminated from the population (e.
The point in mentioning this complexity in the life cycle of grape phylloxera is to underscore that a key mechanism facilitating adaptation of phylloxera to its environment, sexual recombination, does not occur commonly in commercial viticulture areas of California.