A genetic factor that blocks another genetic factor.

The study of how traits are passed from parents to offspring.

A genetic factor that is blocked by the presence of another factor.

Any of the different forms of a gene.

Homozygous: An organisms genotype when the two alleles of a gene are the same

Codominance: The Two alleles that control the pheno type of a trait.

A section on a chromosome that has genetic information for one trait.

Occurs when an offsprings phenotype is a blend of the parents phenotypes.

How a trait appears or is expressed

The two alleles that control the phenotype of a trait.

Occurs when multiple genes determine the phenotype of a trait.

Heterozygous: An organisms genotype when the two alleles of a gene are different

A model used to predict possible genotypes and phenotypes of offspring