SC - Mechanisms of Mutation

Question 1

Define heritable and transient mutations?

Answer 1

Heritable- Can be transferred from one generation to the next (germ-line cell)

Transient- Occur for a short period of time (somatic cell)

Question 2

What are 3 examples of point mutations?

Answer 2

1. Insertions
2. Deletions
3. Substitutions

Question 3

What occurs during a translocation mutation?

Answer 3

A segment from one chromosome is transferred to another

Question 4

What can lead to point mutations?

Answer 4

Unrepaired mistakes in DNA synthesis

Question 5

What are mutagens?

Answer 5

Any physical, chemical or biological agent that raises the frequency of mutations above the spontaneous rate

Question 6

What are the 2 major classes of transposons?

Answer 6

• CLASS I (Retrotransposons)
• CLASS II (DNA Transposons)

Question 7

Can transposons be destructive?

Answer 7

Yes