B4

Question 1

Phylogenetics

Answer 1

The study of the relationships between organisms

Question 2

What are the three domains

Answer 2

Eukarya
Bacteria
Archaea

Question 3

What one of the three domains was most recent

Answer 3

Archaea

Question 4

Why is Archaea no longer classified with bacteria

Answer 4

Archaea have no unused sections of DNA

Question 5

What are the 5 kingdoms

Answer 5

Animals 
Plants 
Fungi
Protists
Prokaryotes

Question 6

What is the genus of Homo Habilis

Answer 6

Homo

Question 7

What is the genus of Homo Habilis

Answer 7

Habilis

Question 8

Order in age Homo

• Sapiens
• Habilis
• Erectus

Answer 8

Habilis
Erectus
Sapiens

Question 9

Explain a disadvantage of growing wheat compared with gum wheat
(2 marks)

Answer 9

• Chance it may spread to other plants

- Ruining the ecosystem

Question 10

Why is the human DNA cut with the same restriction enzyme as the plasmid.
(When making insulin GM with bacteria)

Answer 10

So the (sticky ends) single strands of DNA are complementary and pair up

Question 11

(When making insulin GM with bacteria and human cells)

After the DNA ligase joins up the the two sticky ends of the cells, what happens?

Answer 11

This new GM plasmid is placed back into the bacteria, the bacteria reproduce, creating more insulin ready to be extracted.