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15 Cards in this Set

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  • Back
Heredity
passing traits from parent to offspring
Alleles
different forms a gene may have for a trait (Example: Tall, short)
Genetics
the study of how a gene affects the traits of an offspring
Dominant
the form of a trait that appears to dominate or mask another form of the same trait
Recessive
the form of a trait that appears least often in offspring
Punnett Square
a tool that shows how genes combine
Genotype
the combination of dominant and/or recessive alleles present in the cells of an organism
Phenotype
a physical trait in an organism
Trait
a characteristic of an organism
Gene
a unit of DNA on a chromosome that contains a trait
Inherit
receive from one's mother or father
Mutation
a change in the DNA of a gene
Purebred
an organism with either 2 dominant or 2 recessive genes for a trait (Also called homozygous)
Hybrid
an organism with one dominant and one recessive gene for a trait (Also called heterozygous)
Probability
what are the odds that this event will happen (should be a % or a fraction)