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19 Cards in this Set
- Front
- Back
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the likelihood that a particular event will happen
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probablity
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Characteristic that an organism can pass on to it's offspring through it's genes
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trait
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the process that occurs in sex cells(sperm and egg) by which the number of chromosomes is reduced by half
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meiosis
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the scientific study of heredity
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genetics
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an organism that has 2 different alleles for a trait; an organism that is heterozygous for a particular trait
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hybrid
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the passing of traits from parents to offspring
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heredity
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an allele that is masked when a dominant allele is present
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recessive allele
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RNA that copies the coded message from DNA in the nucleus and carries the message to the cytoplasm
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messenger RNA
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an allele whose trait always shows up in an organism when an allele is present
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dominant allele
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RNA in the cytoplasm that carries an amino acid to the ribosome and adds it to the growing protein chain
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tranfer RNA
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a organisms physical appearance or visible traits
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phnotype
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an organism that always produces ofspring with the same form of trait as the parent
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purebred
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a chart that shows all the possible combination of alleles that can result from a genetic cross
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punnett square
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an organisms genetic makeup, or allele combinations
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genoype
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a segment of DNA on a chromosome that codes for a specific trait
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gene
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a condition in which neither 2 alleles of a gene is dominant or recessive
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codominance
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having 2 identical alleles for a trait
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homozygous
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having 2 different alleles for a trait
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heterozygous
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the different form of genes
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allele
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