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Ch. 5 Less. 1+2
Term | Definition |
---|---|
Heredity | the passing of traits from parents to offspring |
Genetics | the study of how trait are passed from parents to 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 |
Gene | is a section on a chromosome that has genetic information from one trait |
Alleles | the different forms of a gene |
Phenotype | a trait that appears or is expressed |
Genotype | when two alleles that control the phenotype of a trait |
Homozygous | when two alleles of a gene are the same |
Heterozygous | when two alleles of a gene are different |