Trait will appear in the offspring if at least one of the parents contributes it.
Sex cell; sperm or egg.
law of segregation
States that during the production of gametes, the two hereditary factors for each trait segregate. As a result, offspring receive one factor from each parent, resulting in two factors for each trait in the offspring.
Trait must be contributed by both parents in order to appear in the offspring. If only one parent contributes the recessive trait, it will be masked by the other, dominant trait.
Introduces the law of segregation and dominant and recessive traits.