Gene - a section of DNA on a chromosome that has genetic information from one trait , Allele - a different from of gene, Phenotype - how a trait appears or is expressed, Genotype - the alleles of all the genes on an organism's chromosomes control an organism phenotype, Homozygous - a genotype in which the two alleles of a gene are the same , Heterozygous - a genotype in which the two alleles of a gene are the different, Punnett Square - A model that is used to show the probability of all possible genotypes and phenotypes of offspring, Heredity - The passing of traits from parents to offspring, Genetics - the study of how traits are passed from parents of offspring, Dominant Trait - a genetic factor that blocks another genetic factor, Recessive Trait - a genetic factor that is blocked by the presence of a dominant factor, Pedigree - a tool that shows phenotypes of genetically related family members,

Heredity and Genetics

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