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Dihybrid cross


dihybrid cross
a mating between individuals differing in two pairs of alleles
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
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A dihybrid cross is a cross in which two hybrids are mated to test for dominant genes and recessive genes in two separate characteristics, and such a cross has a variety of uses of in Mendelian genetics and genetic linkage experiments.
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Dihybrid cross
Cross involving parents differing in two traits, i.e. in which two genes are segregating or segregation at two loci is being monitored.
Related Terms: Crossing ...
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dihybrid cross In genetics, a cross that involves two sets of characteristics. PICTURE
dinoflagellates Single-celled to colonial protistans characterized by two flagella, one girdling the cell and the other trailing the cell.
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dihybrid cross
A breeding experiment in which parental varieties differing in two traits are mated.
dikaryon ...
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dihybrid cross A genetic cross between parents that differ for two traits.
dikaryon Mycelium of some fungi that have two separate haploid nuclei in each cell.
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A dihybrid cross is two monohybrid crosses
Remember that each of the individual traits in the dihybrid cross above behaves as a monohybrid cross, that is, they will produce a 3:1 phenotype ratio in the offspring.
SMOOTH X wrinkled ...
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Mendel's crossing of plants differing in two characters is an example of a dihybrid cross.
Another view of law of independent assortment.
Some characters do not assort independently. They are called linked characters.
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The behavior of chromosomes during meiosis (2n → n) and fertilization (n + n → 2n) provide the structural basis for Mendel's rules of inheritance. Link to discussions of Mendel's monohybrid and dihybrid crosses.
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