Genetics

physical trait

a characteristic that is visible to others such as height, facial structure, hair type, etc…

inherited trait

a physical characteristic of a person that can be passed down from one generation to another

acquired trait

A charateristic that you are not born with, but you gain during your life, such as education, or the ability to do sports or music.

Signal

A chemical reaction withen a human cell that travels along a nerve pathway to the brain.

Stimulus

A dectectible change in the enviroment. For example light, sounds, touch, chemicals ect.

Receptor Protein

Molecule attached to our receptor cells that can sense a stimulus and start a signal that travels to the brain.

Protein

A special type of large bio molecule in our bodies that carries out many functions in our cells.

Gene

A chemical code that contains the instructions to build proteins.