The Three Domains

Question 1

What did Carl Woese do

Answer 1

Introduced Domain as a new taxonomic rank

Question 2

With the introduction of the domain system, what domain are extremophiles now classified as

Answer 2

Archaea, since then other Archaea have been discovered ( not all extreme!)​

Question 3

What is the cell structure of each domain

Answer 3

Bacteria - Prokaryotic
Archaea - Prokaryotic
Eukarya - Eukaryotic

Question 4

What is the DNA structure of each domain

Answer 4

Bacteria - Circular
Archaea - Circular
Eukarya - Linear

Question 5

Which domains have membrane bound organelles

Answer 5

Bacteria - No, 70s ribosomes
Archaea - No, 70s ribosomes
Eukarya - Yes, 80s ribosomes

Question 6

Which domains have introns

Answer 6

Bacteria - No
Archaea - Some
Eukarya - Yes

Question 7

How many proteins is the RNA polymerase of each domain made from

Answer 7

Bacteria - 5 proteins
Archaea - 8 to 10 proteins
Eukarya - 12 proteins

Question 8

Which of the three domains can grow at 100 degrees Celsius

Answer 8

Bacteria - No
Archaea - Some can
Eukarya - No

Question 9

Which of the three domains has a Cell wall made of peptidoglycan​

Answer 9

Bacteria - Yes
Archaea - No
Eukarya - No

Question 10

Which of the three domains can be poisoned by diphtheria toxin

Answer 10

Bacteria - No
Archaea - Yes
Eukarya - Yes

Question 10

Which of the three domains has a cytoskeleton

Answer 10

Bacteria - No
Archaea - No
Eukarya - Yes

Question 11

Which of the three domains are sensitive to streptomycin

Answer 11

Bacteria - Yes
Archaea - No
Eukarya - No