Backcrossing is a crossing of a hybrid with one of its parents or an individual genetically similar to its parent, in order to achieve offspring with a genetic identity which is closer to that of the parent.
Backcross
A genetic cross between an offspring and one of its parents or an organism genetically identical to one of its parents.
Bacteriophage (or simply Phage)
A virus that infects a bacterium.
backcross A seed generative method in which the progeny of a cross is mated back to one of the parental types.
Backcross suggests more than one genetic loci contribute in regulating gamma globin expression: We first generated 70 backcross transgenic animals as a pilot study of the possible number of genetic factors involved in up-regulating the gamma ...
Introgression. Backcrossing of hybrids of two plant populations to introduce new genes into a wild population.
Backcross. Crossing an organism with one of its parent organisms. Bacteriocide. A class of antibiotics that kills bacterial cells. Bacteriophage (phage or phage particle). A virus that in- fects bacteria.
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When a newly-arisen tetraploid (4n) plant tries to breed with its ancestral species (a backcross), triploid offspring are formed. These are sterile because they cannot form gametes with a balanced assortment of chromosomes.
This is achieved by superimposing the locus of interest on the genetic background of another by first crossing two inbred lines followed by extensive (about 20 generations) backcrossing hybrids to one parental line (the background strain) while ...
A cross between an animal that is heterozygous for alleles obtained from two parental strains and a second animal from one of those parental strains. Also used to describe the breeding protocol of an outcross followed by a backcross.
 See also: Genome, Sequence, Chromosome, DNA, Lysis
  
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