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The scientific study of heredity


process in sexual reproduction in which male and female reproduction cells join to form a new cell


term used to describe organisms that produce offspring identical to themselves if allowed to self-pollinate


specific characteristic that varies from one individual to another


the offspring of crosses between parents with different traits


sequence of DNA that codes for a protein and thus determines a trait


one of a number of different forms of a gene


separation of alleles during gamete formation


specialized cell involved in sexual reproduction


likelihood that a particular event will occur

punnett square

diagram showing the gene combinations that might result from a genetic cross


term used to refer to an organism that has two identical alleles for a particular trait


term used to refer to an organism that has two different alleles for the same trait


physical characteristics of an organism


genetic makeup of an organism

independent assortment

independent segregation of genes during the formation of gametes

incomplete dominance

situation in which one allele is not completely dominant over another


situation in which both alleles of a gene contribute to the phenotype of the organism

multiple alleles

three or more alleles of the same gene

polygenic traits

traits controlled by 2
or more genes

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