Mutations Mutations: Any change in a DNA sequence. Inversions: Deletions: Insertions/Duplication Q’s & Ans Time: What happens if the mutation is a reproductive cell? What happens if the mutation occurs with a body cell? What can cause mutations to body cells? What are all the possible types of mutations? Protection from mutations: • Sunscreen • Avoid harmful chemicals • Avoid excessive x-rays • ... Chromosomal Mutations chromosomes break & rejoin incorrectly or are lost Plants suffer the most by chromosomal mutations Mutations itself do not specifically change allele frequencies. It is however, the ultimate source of all variation. Making evolution possible.