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Genetic Disorders

Unit 8: Genetics

TermDefinition
Huntington's Disease A dominant genetic disease that causes holes to develop in the brain. Possible genotypes for the disorder: DD or Dd
Achondroplasia A recessive genetic condition that causes a decrease in height. Possible genotypes for this condition: only aa
Tay Sach's Disease A recessive genetic condition that causes lipids to deposit in the brain leading to brain damage. Possible genotypes for this condition: only tt
Phenylketonuria (PKU) A recessive genetic disorder that causes phenylalanine to build up in the brain leading to brain damage. Possible genotypes for this disorder: only pp
Sickle Cell Anemia A recessive genetic disorder that changes the round shape of red blood cells into sickle. Possible genotypes for this disorder: only ss
Cystic Fibrosis A recessive genetic disorder that causes thick, sticky mucus to buildup in the lungs and digestive tract. Possible genotypes for this condition: only cc
Carrier A heterozygous genotype (Tt). Individuals who are heterozygous do not have express the phenotype for the recessive trait, but can still carry it/pass it on to their children.
Unaffected/Normal For a dominant trait, an unaffected genotype is homozygous recessive (dd). For a recessive trait, an unaffected genotype is homozygous dominant (DD). These individuals do not have the trait and cannot pass it to their offspring.
Created by: Biomonsters
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