3. What are Transposons and Retrotransposons?
Eukaryote Transposons 2 types:
Transposons: transposable elements
move using DNA intermediate
Retrotransposons: transposable
elements move using RNA intermediate
(transcript of the retrotransposon DNA)
4. How do these Transposons Move?
Cut & Paste
Copy & Paste
RNA = ALWAYS
Copy & Paste
RNA intermediate
made
Reverse
transcriptase
transposon copy
Insertion new place
Evolutionary
Advantage
5. Sequences Related to Transposable Elements
Many copies
Some similar some not
Some move some can’t
Move through enzymes
Make up large part of
genome
Alu elements – 10%
human genome
Codes for RNA molecules
Most transposable
elements = “noncoding”
DNA
6. Is there an animation to simplify all of these
words?
Yes!
(that may have been overenthusiastic)