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- Explain how DNA is affected by point mutations, insertions and deletions.
- Describe the effects of different types of mutations on protein function.
- Learn how the environment influences mutation rates.
- Provide examples of frameshift mutations.
1. What is a Point Mutation? - Definition, Causes & Types
What are genetic mutations? How do they affect our DNA? This lesson covers the basics of point mutations and provides simple examples of different mutation types.
2. Effects of Mutations on Protein Function: Missense, Nonsense, and Silent Mutations
How does a tiny point mutation change the way a protein works? What are the consequences of base substitutions? In this lesson, we'll use an imaginary creature to explore missense, nonsense and silent mutations.
3. Mutagens: How the Environment Affects Mutation Rates
What causes mutations to occur in living things? How do we avoid mutations? Are mutations always bad? Discover answers to these questions and more in this lesson on mutagens.
4. Effects of Frameshift Mutations: Definitions and Examples
What is a frameshift in genetic translation? How can a frameshift mutation change a protein? In this lesson, learn about the codon reading frame and how frameshift mutations cause serious problems for polypeptide formation.
5. What is Phenylketonuria (PKU)? - Definition, Symptoms & Treatment
This lesson is about phenylketonuria, or PKU. This is a rare genetic disorder that makes people overly sensitive to phenylalanine, a component of protein. This lesson will describe what PKU is and how people get it. It will also cover symptoms and current treatments.
6. Basal Cell Nevus Syndrome and Treatment
Basal cell nevus syndrome is a genetic condition affecting many parts of the body. Symptoms usually appear during childhood or young adulthood. This lesson will discuss the cause, symptoms, and treatment options.
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