Genetics

Observed trait of an organism will always be expressed (represented by a capital letter). In a pea plant, T (tall)

Individual with identical alleles for a trait (Ex: GG or gg)

Different gene forms, example for tiger eye color, B for blue, b for yellow (1 letter = 1 ______________)

When male gamete (sex cell) joins female gamete (sex cell) to form a fertilized cell, which forms a seed

Individual with both dominant OR both recessive alleles for a trait. Ex: purbred, TT= tall, tt= short

Offspring of a parent that has different forms of a trait (Ex: crossing a horse and a donkey will give us a mule)

The branch of biology that studies heredity.

Outward physical appearance of an organism. For people, phenotype for hair color example is blond or brown.

Individual with a dominant and recessive gene for a trait (ex: Gg for green pea pod)

Individual that carries the recessive allele for a trait but is not displayed in the phenotype

Characteristics that are inherited, examples include face shape, eye color, hair color, nose shape, etc.

Combination of genes in an organism: Example in plants for height TT, Tt, tt

Male and female parts are on different plants when they reproduce

The passing on of characteristics from parent to offspring

Male and female parts are on the same plant when they reproduce

Trait that will be expressed only if the dominant trait is NOT present (represented by a lowercase letter) t= short