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Genetic vocabulary
| Term | Definition |
|---|---|
| Allele | one member in a gene pair that controls characteristics such as eye and hair color |
| DNA | Deoxyribonucleic acid, makes up chromosomes and the carries genetic information |
| Dominance | situation in which one allele is expressed over a second allele |
| Gene | a portion of DNA molecule that serves as the basic unit of heredity |
| Genotype | the genetic makeup of an individual organism expressed with letters |
| Genetic crossing | the deliberate breeding of two different individuals that results in off spring that carry part of the genetic material of each parent |
| Chromosomes | a threadlike structure of nucleic acids and protein that carries genetic information in the form of genes |
| Mitosis | asexual cell division where on parent cell divides and produces two identical daughter cells |
| Heterozygous | a pair of genes where one allele is dominant and one is recessive |
| Homozygous | a pair of genes where both alleles are dominant or both are recessive |
| Hybrid | an animal or plant resulting from a cross between genetically unlike individuals |
| Independent Assortment | Mendel's law that states that traits are transmitted to offspring independently of one another |
| Phenotype | the physical appearance of an organism as distinguished from its genetic makeup |
| Punnett Square | a type of grid that can indicate all the possible outcomes of a genetic cross |
| Recessive | an allele whose phenotype is masked when paired with a dominant allele |
| Segregation | Mendel's law that states that organisms inherit one allele for each trait from each parent due to allele pairs separating during gamete production |
| Meiosis | a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell |
| Purebred | a homozygous trait where BOTH alleles are the same Ex. TT or tt |
| Codominace | when two dominate cells show in an offspring |
| Incomplete Dominance | when there is a blending of traits creating an entirely new trait |