Mutation Flashcards

(3 cards)

1
Q

What is a mutation

A

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

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2
Q

How are mutation caused: Spontaneous mutations

A

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

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3
Q

How are mutations caused: induced mutation

A

induced mutation: caused by mutagenic agents

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

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