Information om | Engelska ordet BACKCROSSES

Exempel på hur man kan använda BACKCROSSES i en mening

• A consomic strain is an inbred strain with one of its chromosomes replaced by the homologous chromosome of another inbred strain via a series of marker-assisted backcrosses.
• There are many moves to do with clubs, among them being pirouettes, juggling above the head, backcrosses, shoulder throws, and kickups.
• Studies of mtDNA and allozymes in adult populations show that the distribution of genotypes between the two species is bimodal; pure parental types are most common (representing above 75% of individuals) while backcrosses close to parental forms are the next most prevalent.
• Spontaneous and engineered backcrosses between the sweet orange and mandarin oranges or tangerines have produced the clementine and murcott.
• The original hybrids are rarely fertile (and hens are generally sterile), but backcrosses with domestic chicken are sometimes achieved and thus several landraces of Pacific chickens have some Bekisar ancestry.
• The hybrid populations are propagated, however, not by the above primary hybridisations, but predominantly by backcrosses with one of the parental species they coexist (live in sympatry) with (see below in the middle).

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