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Mrs. Miller's list is slightly different


characteristics that an organism can pass on to its offspring through its genes


the passing of traits from parents to offspring


factors that control traits


different forms of a gene

dominant allele

an allele whose trait always shows up in the organism when the allele is present; shown as a capital letter

recessive allele

asn allele that is masked when a dominant allele is present; shown as a lowercase letter


an organism that has two different alleles for a trait


the likelihood that a particular event will occur

Punnett Square

a chart that shows all the possible combinations of alleles that can result from a genetic cross


an organism's physical appearance, or visible traits


an organism's genetic makeup, or allele combinations


having 2 identical alleles for a trait


having 2 different alleles for a trait


a condition in which neither of 2 alleles of a gene is dominant or recessive


a change in a gene or chromosome

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