1 For example, character A (controlled by alleles A 1 and A2) and character B (alleles B1 and B2 ). The dihybrid would have the genotype A1A2 B1B2, i.e. a double HETEROZYGOTE. ( of a cross) having two parents that have been mated to produce dihybrids that are then also mated. A single dihybrid plant is self-fertilized (see SELF-FERTILIZATION).
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A Dihybrid Cross. A dihybrid cross is a cross between two individuals that are both heterozygous for two different traits. As an example, let's look at pea plants and say the two different traits we're examining are color and height. In other words, each plant has:
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(of a cross) having two parents that have been mated to produce dihybrids that are then also mated. A single dihybrid plant is self-fertilized (see SELF-FERTILIZATION). MENDEL formulated his law of INDEPENDENT ASSORTMENT from the results of a dihybrid cross involving pairs of contrasting characters in the pea plant.
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Generally, the monohybrid cross is used to determine the dominance relationship between two alleles. The cross begins with the parental (P1 or P) generation. One parent is homozygous for one allele, and the other parent is homozygous for the other allele. The offspring make up the first filial (F1) generation. Every member of the F1 generation is heterozygous.
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(February 2009) (Learn how and when to remove this template message) A monohybrid cross is a mating between two individuals with different alleles at one genetic locus of interest. The character(s) being studied in a monohybrid cross are governed by two or multiple alleles for a single locus. A cross between 2 parents possessing a pair of contrasting characters is known as monohybrid cross.
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While there are many possible genotypes for our offspring, there are only 4 possible phenotypes. The phenotypic ratio, or relative numbers of offspring with each phenotype, for a dihybrid cross is always the same: 9:3:3:1.
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an organism that carries two different ALLELES of one gene and two different alleles of another gene. For example, character A (controlled by alleles A 1 and A2) and character B (alleles B1 and B2 ). The dihybrid would have the genotype A1A2 B1B2, i.e. a double HETEROZYGOTE.
http://medical-dictionary.thefreedictionary.com/dihybrid
dihybrid. 1  an organism that carries two different ALLELES of one gene and two different alleles of another gene. ( of a cross) having two parents that have been mated to produce dihybrids that are then also mated.
http://medical-dictionary.thefreedictionary.com/dihybrid
Video: Dihybrid Cross: Definition & Example. In this lesson, learn what a dihybrid cross is and see an example. Also, find out about phenotypic ratio and how it's the same for each dihybrid cross. After the lesson, test your knowledge with a quiz.
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dihybrid cross definition
Dihybrid cross is a cross between two individuals that are both heterozygous for two different traits.