Genetics Vocabulary

A trait that seems to disappear when two different genes for the same trait are present; "weaker" of two traits. Represented by a lowercase letter.

• Recessive Trait

• Dominant Trait

• Purebred

• Mixed Breed

_______ is the scientist who discovered the fundamental laws of inheritance through his work on pea plants. He is known as the Father of Genetics.

The passing of characteristics from parents to offspring.

• genes

• traits

• heredity

• allele

Characteristics that are inherited

• Genes

• traits

• heredity

• allele

Segments of DNA that carry traits for offspring.

• Genes

• characteristics

• Alleles

• offspring

a trait that is expressed when two different genes for the same trait are present; "stronger" of two traits. Represented by a capital letter.

• Recessive Trait

• Dominant Trait

• Purebred

• Mixed Breed

each member of a gene pair that determines a specific trait.

Ex) Aa - Each “A or a”

• Characteristic

• Allele

• genotype

• phenotype

same, two gene alleles combinations are the same (both dominant or both recessive AA or aa)

• Homozygous

• Heterozygous

different, two gene alleles combinations are different (one dominant and one recessive Aa)

• Homozygous

• Heterozygous

The way an organism looks and behaves. Ex) The ________ of a tall plant is tall, regardless of the genes it contains.

• Genotype

• Phenotype