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Callahan's Genetics

Genetic Vocabulary

Heredity The passing of genetic traits from one parent to offspring
Dominate Trait trsit observed in the first generation when parents that have different traits are bred.
Recessive Trait a trait that is apparent only when two recessive alleles for the same characteristic are inherited
Gene one set of instructions for an inherited trait
Allele one of the alternative forms of a gene that governs a chasracteristic,o such as hair color. Can be dominate or recessive
Phenotype an organism's appearance or other detectable characteristic
Genotype the entire genetic makeup of an organism; also the combination of genes for one or more specific traits( ex: allele Pair: BB, Bb, bb)
Probability the likelihood that possible future event will occur in any given instance of the event
Homologous Chromosome chromosomes that have the same sequence of genes and the same structure
Meiosis a copying process that produces cells with half the ususal number of chromosomes
Sex Chromosome one of the pair of the chromosomes that determine the sex of an individual
Pedigree a tool for tracing a trait through generations of a family
Genetic Engineering Used to help produce large volumes of medicine; change how cells look or perform
Genetics the study of traits
Heterozygous describes an organism with two different alleles for a trait
Homozygous describes an organism with two alleles that are same for a trait(BB-homozygous recessive, bb- homozygous dominant)
Incomplete Dominance phenotype between two homozygous parents, does not show true dominance. (ex: AB blood)
Created by: Bettsag