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Genetics Vocabulary
| Term | Definition |
|---|---|
| Heredity | The passing of traits from parent to offspring |
| Genetics | The study of heredity |
| Gregor Mendel | Known as the father of Genetics, he studied heredity of pea plants and how traits are passed from one generation to another |
| Homozygous (purebred) | -If both alleles are the same, the organism is homozygous, or purebred, for that trait. - Example: LL, bb, AA |
| Trait | Physical characteristics of an organism |
| Alleles | - Different forms of a gene - Example: tall stem/short stem, purple flower/white flower |
| Genotype | -Its genetic makeup. Genotype is shown with two letters. - Example: Gg, gg, GG |
| Phenotye | -An organisms physical appearance. (These are things we can see with our eyes) - Example: white fur/dark fur |
| Heterozygous (hybrid) | - If the two alleles are different, the organism is heterozygous, or hybrid, for that trait. - Example: Ll, Bb, Aa |
| Genes | - Factors that control traits- found on chromosomes - Inherited in pairs, 1 allele from dad and 1 allele from mom |
| Dominant trait | Stronger traits represented by a capital letter - always shows up when the allele is present in a gene pair (RR , Rr) |
| Recessive trait | Weaker traits represented by a lower case letter – is masked or hidden when paired with a dominant allele in a gene pair (rr) |
Created by:
trickum123
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