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DCES GENETICS
Genetics Unit Vocabulary
Term | Definition |
---|---|
Traits | These are characteristics of all living things. A physical characteristic. Traits are determined by genes. All genes consist of DNA(deoxyribonucleic acid). |
Inherit | to receive traits from parents. An inherited trait are those that are passed from parent to offspring. |
Heredity | Passing of traits from one generation to the next. |
Genotype | The gene pair for a given trait |
Phenotype | A description of a trait. |
Chromosome | A rod shaped structure in the nucleus of a cell that contains DNA. |
Gene | Part of a Chromosome that that determines hereditary traits. Instructions for a particular trait. |
Gene Site | The site where the gene is positioned on the chromosome. |
Dominant Gene | a gene for which the trait always appears(dominates when present) |
Recessive Gene | a gene for which the trait only appears when the dominant gene is not present. |
DNA (Deoxyribonucleic Acid) | Chemical molecules in chromosomes that control cell activity and determine hereditary traits. |
Allele | one of several different forms of a specific gene. |
Offspring | babies of parents |
Behavior | way of acting |
Instinct | Inherited behavior |
Gregor Mendel | Father of Genetics |