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Science Explosion 14

BJU 6th Science - Chapter 13

Traits characteristics
Genes small pieces of DNA in chromosomes
DNA chemical code that tells cells what to do
Heredity passing of traits from parents to offspring
Inherited received traits from parents
Purebred plant plants that show the same trait for many generations when pollinated naturally
P generation parent generation
Hybrid plants produced by crossing purebred parents that each have different forms of the same trait
Dominant trait characteristic shown in hybrid generation
Recessive trait hidden in hybrid generation and can appear in later generations
Phenotype physical appearance of an organism
Genotype arrangement of genes in an organism
Codominant both genes expressed
Incomplete dominance blending of genes (red flower+white flower=pink flower)
Pedigree "family tree" that traces a trait
Sex-linked trait traits passed from mother to son (like colorblindeness)
Sickle cell anemia disease with abnormal, sickle shaped red blood cells
Cystic Fibrosis genetic disease affecting lungs and digestive system
Down syndrome genetic disorder caused by extra chromosome
Genetic engineering involves changing or tranfering genes from one organism to another
Created by: MrsDunham