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Genetics #2

Incomplete dominance, codominance, genetic disorders, sex-linked traits

Incomplete Dominance when two organisms are crossed with two different phenotypes that produce offspring with a blended phenotype of the parents. (Red flower x white flower = pink flower)
Name two examples of incomplete dominance Four o'clock flowers and Andalusian fowl
Codominance when two organisms are crossed with two different phenotypes that produce offspring with both phenotypes present. (Red cow x white cow = red and white cow -roan cattle)
Name four examples of codominance Tabby cat, Roan cattle, Husky's eyes, Erminette chickens
Genetic disorder an abnormal condition that a person inherits through genes or chromosomes
Mutation changes in a person's DNA
Cystic Fibrosis a genetic disorder in which the body produces abnormally thick mucus in the lungs and intestines.
Sickle-cell Anemia a genetic disorder caused by abnormally shaped blood cells that make it difficult for the blood cells to carry oxygen
Hemophilia a genetic disorder in which the blood clots very slowly or not at all
Down Syndrome a genetic disorder that is due to an extra copy of chromosome 21
Pedigree a diagram or chart that shows how traits are passed from one generation to the next in a family
Meiosis the double cell division to produce sex cells (23 chromosomes each)
Created by: jhulshoff