| A | B |
|---|
| alleles (8-2) | different versions of a gene |
| codominance (8-4) | two dominant alleles are expressed at the same time |
| dominant (8-2) | the expressed form of a trait |
| F1 generation (8-1) | offspring of the P generation |
| F2 generation (8-1) | offspring of the F1 generation |
| genetics (8-1) | branch of biology that studies heredity |
| genotype (8-2) | set of alleles that an individual has |
| heredity (8-1) | passing of traits from parents to offspring |
| heterozygous (8-2) | the alleles of a particular gene are different |
| homozygous (8-2) | when the two alleles of a particular gene are the same |
| incomplete dominance (8-4) | when an individual displays a trait that is intermediate between the two parents |
| law of independent assortment (8-2) | the alleles of different genes separate independently of one another during gamete formation |
| law of segregation (8-2) | the two alleles for a trait separate when gametes are formed |
| monohybrid cross (8-1) | a cross that considers one pair of contrasting traits |
| multiple alleles (8-4) | genes with three or more alleles |
| P generation (8-1) | first two individuals crossed in a breeding experiment |
| pedigree (8-3) | a family history that shows how a trait is inherited |
| phenotype (8-2) | physical appearance of a trait |
| polygenic trait (8-4) | when several genes influence a trait |
| probabililty (8-3) | the likelihood that a specific event will occur |
| Punnett square (8-3) | diagram that predicts the outcomes of a genetic cross |
| recessive (8-2) | not expressed when the dominant form of the trait is present |
| sex-linked trait (8.-3) | trait whose allele is located on the X chromosome |
| test cross (8-3) | cross of a homozygous recessive individual with an individual with a dominant phenotype of unknown genotype |
| true breeding (8-1) | all the offspring display only one form of a particular trait |
