Back-cross A cross between a progeny from a previous cross and its parental strain, a cross of a heterozygote with its homozygous recessive parent, or the cross of a plant of unknown genotype with a homozygous recessive. Related Terms: ...
Typically, the hybrid zone will include representatives of one or both of the 'pure' populations, plus first-generation and back-crossing hybrids.
This technique allows the discrimination between chromosomes originating from different species present within one nucleus. GISH can also be used to study the meiosis of the somatic hybrids and the back-cross hybrids.
See also: Gene, Cells, Plant, Chromosomes, Genome
 
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