Chapter 12 Vocab Flashcards
0
Q
What are sticky ends?
A
Single stranded regions whose unpaired bases can hydrogen bond to the complementary sticky ends of other fragments created by the same restriction enzyme
1
Q
What are restriction enzymes and what do they do?
A
“Cutting tools”
- They protect bacterial cells against intruding DNA from other organisms or viruses
- chop up foreign DNA
2
Q
What is a plasmid?
A
Small circular DNA molecule that replicated separately from a much larger bacterial chromosome. They carry and replicate bacteria.
