Genetic Crosses
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Genotype | The entire genetic makeup of an organism; also the combination of genes for one or more specific traits
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Phenotype | An organism's appearance or other detectable characteristic that results from the organism's genotype and the environment
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Homozygous | Describes and individual that has identical alleles for a trait on both homologous chromosomes
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Heterozygous | Describes an individual that has two different alleles for a trait
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Phenotypic Ration | The ration of phenotypes produced by a cross
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Testcross | The crossing of an individual of unknown genotype with a homozygous recessive individual to determine the unknown genotype
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Complete Dominance | A relationship in which one allele is completely dominant over another
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Incomplete Dominance | A condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully
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Codominance | A condition in which both alleles for a gene are fully expressed
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Dihybrid Cross | A cross between individuals that have different alleles for the same gene
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Created by:
GutzwillerL19
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