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15 Cards in this Set
- Front
- Back
Define heredity
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passing of traits from parents to offspring
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trait
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a characteristic that an organism can pass onto its offspring through its genes
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genetics
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the scientific study of heredity
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fertilization
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the joining of a sperm and an egg
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purebred
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the offspring of many generations with the same trait
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Define gene
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the set of information that controls a trait
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Define alleles
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the different forms of a gene
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Define dominant allele
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an allele who's trait always shows up in the organism when the allele is present
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Define recessive allele
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an allele that is masked when a dominant allele is present
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Define hybrid
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an organism that has two different alleles for the same trait
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Define probability
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a number that describes how likely it is that an event will occur
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Define Punnett Square
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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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Define phenotype
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an organism's physical appearance or visible traits
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Define homozygous
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having two identical alleles for a trait
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Define heterozygous
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having two different alleles for a trait
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