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backcross |
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backcross /back·cross/ (bak´kros) a mating between a heterozygote and a homozygote. backcross Etymology: AS, baec + cruc, cross 1 a mating (cross) between a heterozygote and a homozygote. 2 an organism or strain produced by such a cross. See also testcross. backcross mating the crossbred offspring of a two-way cross back to one of the parent breeds. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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It takes time to backcross a particular germplasm with a technology, so we've started backcrossing while we're testing new varieties. Using an elaborate computer simulation of the way genes can spread between and within populations, the team concluded that backcrossing is probably very rare. Using a technique known as backcrossing, McIntire and her colleagues generated mice that were genetically identical to the susceptible mice, other than for small segments of DNA from the resistant group. |
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