Physical Traits or Characteristics in AP Biology

Definition

Physical traits or characteristics are observable features of an organism, such as size, color, shape, etc., determined by genes and environmental influences.

Related terms

Phenotype:

The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment. Like your outfit for a day - what others see when they look at you.

Heredity: The passing on of physical or mental characteristics genetically from one generation to another. Like inheriting your mom’s eyes or dad’s hair color.

Mutation:

A permanent alteration in the DNA sequence that makes up a gene. It's like accidentally spilling bleach on your favorite shirt - the shirt (gene) is permanently changed.