วันอาทิตย์ที่ 9 ตุลาคม พ.ศ. 2554

3.34 Causes of Mutation



- What causes mutation?
1. Radiation: x-rays, UV-B rays (mutations that can cause diseases such as skin cancer)
2. Chemicals: Tars in tobacco (cancerous conditions).
- Chemicals which cause mutations are called mutagens.
- Chemicals which cause mutation known as mutagens which also cause cancer are called carcinogen.


1 ความคิดเห็น: