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13 Cards in this Set
- Front
- Back
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passing of traits from parent to parent to offspring
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heredity
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one trait always appears and the other trait seemed to vanish
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dominant trait
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the other trait to recede into the background
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recessive trait
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parent donates one set of instructions
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genes
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two forms of of a gene
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alleles
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inherited combination of alleles
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genotype
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organisms appearance
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phenotype
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mathmatical chance that an event
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probability
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two parent cells
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sex cells
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chromosomes in each pair
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homologeous
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human sex cells have only 23 cells
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chromosmes
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produces new cells with half the usual number of chormosomes
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Meiois
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cerry genes that determine whether the offspring is male or female
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sex chromosmes
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