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Callahan's Genetics
Genetic Vocabulary
| Question | Answer |
|---|---|
| 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) |