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Genetics
| Term | Definition |
|---|---|
| Heredity | Heredity is the passing of traits to offspring from its parents or ancestor. This is the process by which an offspring cell or organism acquires or becomes predisposed to the characteristics of its parent cell or organism. |
| Trait | a distinguishing quality or characteristic, typically one belonging to a person. |
| Genetics | Genetics is the study of genes, heredity, and variation in living organisms. |
| Fertilization | s the fusion of gametes to initiate the development of a new individual organism |
| Purebred | (of an animal) bred from parents of the same breed or variety. |
| Gene | A gene is the molecular unit of heredity of a living organism. |
| Alleles | any of several forms of a gene, usually arising through mutation, that are responsible for hereditary variation. |
| Dominant allele | A dominant allele produces a dominant phenotype in individuals who have one copy of the allele, which can come from just one parent. |
| Recessive allele | A recessive allele only shows if the individual has two copies of the recessive allele. |
| Hybrid | a hybrid is an offspring of two animals or plants of different breeds, |
| Probability | Probability is the measure of the likeliness that an event will occur. |
| Punnett Square | The Punnett square is a diagram that is used to predict an outcome of a particular cross or breeding experiment. |
| Phenotype | the observable constitution of an organism. |
| Genotype | he genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complex of traits. |
| Homozygous | having identical pairs of genes for any given pair of hereditary characteristics. |
| Heterozygous | having dissimilar pairs of genes for any hereditary characteristic. |
| Codominance | Ecology. being one of two or more species that are equally dominant in a biotic community: |
| Meiosis | part of the process of gamete formation, consisting of chromosome conjugation and two cell divisions, in the course of which the diploid chromosome number becomes reduced to the haploid. |
| Messenger RNA | a single-stranded molecule of RNA that is synthesized in the nucleus from a DNA template and then enters the cytoplasm, where its genetic code specifies the amino acid sequence for protein synthesis. |
| Transfer RNA | a small RNA molecule, consisting of a strand of nucleotides folded into a clover-leaf shape, that picks up an unattached amino acid within the cell cytoplasm and conveys it to the ribosome for protein synthesis. |
| Mutation | a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome. |