| A | B |
| heredity | the passing of traits from parent to offspring |
| alleles | the different forms a gene may have for a trait |
| genetics | the study of how traits are inherited through the actions of alleles |
| Gregor Mendel | known as the Father of Modern Genetics |
| recessive | allele that seems to disappear |
| probability | the chance that something will happen |
| dominant allele | represented by a capital letter |
| homozygous | two alleles for a trait are exactly the same |
| heterozygous | example: Tt |
| phenotype | physical trait that shows as a result of a particular genotype |
| genotype | genetic makeup of an organism |
| intermediate | incomplete dominance is the production of a phenotype that is ______________ to those of two homozygous parents |
| incomplete dominance | inheritance of flower color in 4'o clock plants |
| trait | a ___________ that is controlled by more than two alleles is considered to be controlled by multiple alleles |
| multiple alleles | blood type in humans is an example |
| gene pairs | poylgenic inheritance occurs when a group of ______________ act together to produce a single trait |
| polygenic inheritance | eye color, height, lips, and ears are examples |
| sickle cell anemia | a homozygous recessive disorder in which red blood cells are sickle-shaped instead of disc-shaped |
| cystic fibrosis | a homozygous recessive disorders in which thick mucus is produced instead of thin fluid |
| sex linked | color-blindness and hemophilia are ________________ disorders |
| pedigree | shows the occurrence of a trait in a family |
| genetic engineering | used to help produce large quantities of medicine and improve crop production |
| genome | chart that shows the location of individual genes on a chromosome |