Science Ecosystems & Habitats Conceptual 12–14 yrs

Genetic Mutation

基因突变

Description

Explain genetic mutation as a random change in DNA sequence, describe causes of mutation (e.g. radiation, chemicals, copying errors), and explain that most mutations are neutral, some harmful, and a few beneficial

Mastery Evidence

✓ Defines mutation as a change to DNA sequence
✓ Names at least two things that can cause mutations (mutagens)
✓ Explains that mutations are the original source of all genetic variation
✓ Explains that beneficial mutations can be selected for by natural selection

Assessment Prompt

If your child heard that DNA can get damaged or changed, could they explain what a mutation is, what might cause one, and why most mutations don’t actually cause problems — but occasionally one leads to something new?