CB4 Flashcards
3 domains
Eukarya
Archaea
Prokaryotes (bacteria)
Eukarya
Nucleus
Sections of unused DNA
Archaea
No nucleus
Sections of unused DNA
Prokaryotes
No nucleus
No sections of unused DNA
Why were the 3 domains suggested instead of the 5 kingdoms
DNA / genetics
Which is the least closely related to the other domains?
Prokaryotes
Genetic engineering
Genetic engineering involves removing a gene from one organism and inserting it in to the DNA of another organism
Stages of genetic engineering
Stage 1
Identify the desired gene
Stages of genetic engineering
Stage 2
Remove a plasmid from a bacterium
Stages of genetic engineering
Stage 3
Use the same restriction enzyme to remove the desired gene and cut open the plasmid
Stages of genetic engineering
Stage 4
This creates sticky ends
Stages of genetic engineering
Stage 5
Insert the gene and seal it in to the plasmid using the enzyme ligase
Stages of genetic engineering
Stage 6
The plasmid acts as a vector to take the gene in to the bacterial cell
5 kingdoms
- Animals
- Plants
- Fungi
- Prokaryotes
- Protists
What is evolution?
A gradual change in the characteristics of a species over a given time
Selective breeding
- Choose a (male) and a female with the desired characteristics
- Breed them together
- Look at their offspring, and choose the two with the best desired characteristics
- Breed them together
- Repeat this process many times
