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.
Queen Victoria explains pedigrees using the royal family and its inheritance of hemophilia. Her royal majesty, Queen Victoria of England! We shall tell you about pedigrees; ours is most detailed.We will focus on that part of the family line leading up to the Russian Royal House -- the Romanovs.ueen Victoria explains pedigrees using the royal family and its inheritance of hemophilia. Her royal majesty, Queen Victoria of England! We shall tell you about pedigrees; ours is most detailed.We will focus on that part of the family line leading up to the Russian Royal House -- the Romanovs.