1. Transposons and Mechanisms of Transposition
Wuda Wang(MCB720)

2. Transposable Elements
Transposons
-1. The Discovery of Transposable Element
-2. Two types of transposons
2.1 Insertion Sequence (IS)
2.2 Composite Transposon
-3. Two mechanisms of Transposition
3.1 Replicative Transposition
3.2 Non-replicative Transposition
Retrotransposons

3. 1. The Discovery of Transposable Element

4. 2.1 Insertion Sequence (IS)

5. Formation of target repeats

6. 2.2 Composite Transposon

8. 3.1 Replicative Transposition

10. 3.2 Non-replicative Transposition
Mechanism 1: share
some steps with
replicative transposition

11. Mechanism 2:
cleavage and ligation