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17 Cards in this Set
- Front
- Back
A range of slightly different values for a trait in a population, as seen in height or eye color.
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continuous variation
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In genetics, the mating of two organisms.
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cross
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Applies to an allele with an effect that is visible in a heterozygote even if only one copy of the allele is present in the individual.
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dominant
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All of the forms of genes, and the distribution of these forms, found within a species.
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genetic variation
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Genetic composition of an individual. For a given trait, the list of both alleles present in the individual without respect to which physical or physiological trait predominates.
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genotype
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The amount of variation for a trait in a population that can be explained by differences in genes among individuals.
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heritability
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Genotype consisting of two different alleles for a gene.
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heterozygous
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Genotype consisting of two copies of the same allele of a gene.
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homozygous
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The separation of homologous pairs of chromosomes into gametes independently of one another during meiosis.
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independent assortment
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Situations with unique circumstances that allow a hypothesis test without prior intervention by researchers.
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natural experiments
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Physical and physiological traits of an individual.
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phenotype
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Heritable traits influenced by many genes.
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polygenic traits
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Table that lists the different kinds of sperm or eggs parents can produce relative to the gene or genes in question and predicts the possible outcomes of a cross between these parents.
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Punnett square
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Heritable traits that have many possible values, such as height or eye color.
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quantitative traits
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The unpredictability of exactly which gametes will fuse during the process of sexual reproduction.
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random fertilization
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Applies to an allele with an effect that is not visible in a heterozygote.
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recessive
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Separation of pairs of alleles during the production of gametes. Results in a 50% probability that a given gamete contains one allele rather than the other.
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segregation
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