Mutation

Question 1

What is a mutation

Answer 1

Mutations are permanent changes in DNA sequences of gene
1. Germline — gametes, passed on, sickle cell anemia
2. Somatic — body cells, not passed on, most cancers

Question 2

How are mutation caused: Spontaneous mutations

Answer 2

Spontaneous mutations: errors caused during DNA replication

such as..
• repositioning of hydrogen on nitrogen base
• the removal of a amino group (NH2)
• replication slipped strand

Question 3

How are mutations caused: induced mutation

Answer 3

induced mutation: caused by mutagenic agents

Such as..
• chemicals - cigarettes, drugs
• UV radiation
• x rays