Genetics Vocabulary
Terms
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- homozygous (or purebred)
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Organisms that have identical alleles for a trait.
(examples: TT or tt)
- heredity
- The set of characteristics that an organism recieves from its parents.
- alleles
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Different forms of the same gene.
(example: the gene for height in pea plants has two forms, T and t) - phenotype
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The way that an organism looks, or the trait that is displayed.
(examples: tallness or shortness) - genetics
- The study of heredity.
- genotype
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An organism's genetic makeup.
(exmaples: TT, Tt, or tt) - gene
- A unit of DNA that codes for a specific trait.
- heterozygous (or hybrid)
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Organisms that have different alleles for a trait.
(example: Tt) - Examples of Phenotype
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Tall
Short
Brown Hair
Orange Fur
Blue Eyes - trait
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A physical characteristic.
(examples: tallness or shortness) - Examples of Genotype
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TT, homozygous (purebred)
tt, homozygous (purebred)
Tt, heterozygous (hybrid)