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Biology
Genetics test review / was absent
| Term | Definition |
|---|---|
| Homozygous | Same , both capital or both lower case letters |
| Heterozygous | Different , one capital one lower case letter |
| Dominant | Capital letter , a trait that always shows up |
| Recessive | Lower case letter , trait that doesn't always show up |
| Mono hybrid | Has 1 trait , always in a 4 punnette square |
| Dihybrid | Has 2 traits , in a larger punnette square |
| Homozygous | Same , both capital or both lower case letters |
| Heterozygous | Different , one capital one lower case letter |
| Dominant | Capital letter , a trait that always shows up |
| Recessive | Lower case letter , trait that doesn't always show up |
| Mono hybrid | Has 1 trait , always in a 4 punnette square |
| Dihybrid | Has 2 traits , in a larger punnette square |
| Alleles | Different from a gene |
| Genotype | Genes , genetics |
| Phenotype | Physical appearance |
| Co-dominant | More than 1 dominant |
| Incomplete dominance | No dominant , no recessive , 2 different dominance |
| Sex-linked | Involves sex chromosomes , XX female , XY male |
| Tay Sachs | Rare autosomal recessive genetic disorder |
| Color blindness | Absence of one of the primary cone pigments of the retina |
| Albinism | Lack of pigmentation to the skin & hair of a person or animal or in coloration or a plant |
| Huntington disease | Nerve cells in certain parts of brain waste away or degenerate |
| Hemophilia | Blood clot is severely reduced , causing bleeding from a slight injury |
| PKU | When a baby is born without the ability to properly break down amino acids called Phenylalanine |
| Sickle cell anemia | Red blood cells take a sickle or crescent shape . |
| Cystic fibrosis | Affects the exocrine glands . Causes production of abnormally thick & stick mucus to build up in the lungs , digestive tract & other areas of the body . One of most common lung diseases in children & young adults |