Moles occur when cells in the skin grow in a cluster instead of being spread throughout the skin. These cells are called melanocytes, and they make the pigment that gives skin its natural color. Moles may darken after exposure to the sun, during the teen years, and during pregnancy.
A pedigree chart is used to show your family tree of traits. An example is if a diagram shows your mom who had brown hair and your dad has red hair and then it shows all of th â¦ e children they had and shows what color hair they had.
Pedigree Builder - Create a Free Dog Pedigree Chart. Please view this page on a computer to use this feature. Please fill out the below form to create a Pedigree Chart for your pet that you can add to your website. This pedigree builder provides html code for you to embed on your personal website. We are unable to provide it in a format that is printable.