Mendelian and Non-Mendelian Inheritance Concepts

Flashcards covering key concepts in Mendelian and Non-Mendelian genetics.

Polygenic Inheritance

The additive effect of two or more genes on a single phenotypic character.

Codominance

Both alleles affect the phenotype independently.

Incomplete Dominance

Both alleles contribute to the phenotype, but none is dominant.

Epistasis

When phenotypic expression of a gene at one locus alters that of a gene at a second locus.

Pleiotropy

A single gene affecting multiple phenotypic traits.

Degrees of Dominance

Classification of dominance including complete dominance, incomplete dominance, and codominance.

Mendel's Genetics

Principles established by Gregor Mendel regarding inheritance patterns in pea plants.

Mendelian Ratio

The typical 9:3:3:1 phenotypic ratio observed in dihybrid crosses.

Multiple Alleles

More than two alleles exist for a gene, such as in blood groups.

Environmental impact on phenotype

Effects of environment on the expression of genetic traits.

Hard Red Winter Wheat

A variety of wheat known for its specific environmental adaptability.

Flower Color

A trait determined by genetic inheritance in pea plants.

Homozygous Recessive

An individual with two recessive alleles for a specific trait.