Genetics and Pedigrees

A genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two traits.

An individual who is homozygous recessive for a trait.

The study of heredity and the variation of inherited characteristics.

The parents must be heterozygous carriers of the disorder.

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

A diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

Homozygous means having two identical alleles for a particular gene, while heterozygous means having two different alleles.

A diagram used to predict the outcome of a particular cross or breeding experiment.

An individual with two dominant alleles for a trait.

The first filial generation, which is the offspring of the parental generation, used to study inheritance patterns.