1
Q
What is a mutation
A
a mutation is a random change to DNA; it can be both positive and negative
2
Q
What causes mutations?
A
Mutagens
3
Q
what are the 3 types of mutagens
A
Chemical, Biological and Physical
4
Q
give examples for Physcial Mutagens
A
Viruses and Bacteria
5
Q
give examples for chemical Mutagens
A
Benzene and Nicotine
6
Q
give examples of biological Mutagens
A
X-Rays, Gamma Rays, Radiation (these are Ionising)
