3.1.3- Explain how mutations in DNA that result from interactions
with the environment (i.e. radiation and chemicals) or new
combinations in existing genes lead to changes in function
and phenotype
![Picture](/uploads/2/8/1/7/28177325/6430951.jpg)
Skin cancer is not a very rare mutation, it happens when there is and error in the DNA in your skin cells. You can get this disorder from to much UV radiation. When having this mutation some conditions vary according to the type of skin cancer you may have. Most however though in the areas most exposed to light. Most cancerous people have cancer because of to much exposure to one thing such as, chemicals and radiation. When being to exposed to these substances you DNA will begin to mutate. Some cancers however are passed down through your genes from your ancestors.
This video will run through all of the ways a mutation can occur.
To play a quick game to help understand mutations...
Deannh Mihalke