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DCES GENETICS

Genetics Unit Vocabulary

TermDefinition
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
Created by: KCAshe