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Chapter 11 Lesson 2
Vocabulary Words
Term | Definition |
---|---|
Gene | a section on a chromosome that has genetic information for one trait |
Alleles | the different forms of a gene |
Phenotype | geneticists call how a trait appears, or is expressed |
Genotype | the tow allelesthat control the phenotype of a trait |
Homozygous | when the tow alleles of a gene are the same |
Heterozygous | the two alleles of a gene are different |
Punnett Square | a model used to predict possible genotypes and phenotypes of offspring |
Incomplete Dominance | when the offspring's phenotype is a combination of the parents' phenotypes |
Codominance | when both alleles can be observed in a phenotype |
Polygenic Inheritance | when multiple genes determine the phenotype of a trait |