| A | B |
|---|
| a recognizable inherited feature or characteristic of an organism | character |
| a genetically determined characteristic | trait |
| the offspring of a cross between parents that have contrasting traits | hybrid |
| the entire group of offspring produced by a given group of parents | generation |
| one of two or more alternative forms of a gene, each leading to a unique trait | allele |
| describes an allele that is fully expressed whenever the allele is present in an individual | dominant |
| describes an allele that is expressed only when there is no dominant allele present in an individual | recessive |
| a specific combination of alleles in an individual | genotype |
| he detectable trait or traits that result from the genotype of an individual | phenotype |
| describes an individual that carries two identical alleles of a gene | homozygous |
| describes an individual that carries two different alleles of a gene | heterozygous |
| a graphic used to predict the results of a genetic cross | Punnett square |
| the likelihood that a specific event will occur | probability |
| a diagram that shows the occurrence of a genetic trait in several generations of a family | pedigree |
| an inherited disease or disorder that is caused by a mutation in a gene or by a chromosomal defect | genetic disorder |
| a character that is influenced by more than one gene | polygenic character |
| a condition in which both alleles for a gene are fully expressed | codominance |
| in genetics, describes two or more genes that tend to be inherited together | linked |
