Consider the following statements regarding characters of Archaebacteria that they share with eukaryotes:
I. The cell wall does not contain peptidoglycan.
II. DNA associated with histones.
III. Translation initiated with formylated methionine.
IV. RNA polymerase similar to eukaryotic RNA polymerase II
V. ATPase similarity
VI. Similar DNA replication and repair
How many of the above characters Archaebacteria share with eukaryotes?
(1) 3
(2) 4
(3) 5
(4) 6
Identify a character that is not unique to archaebacteria:
(1) Cell wall structure
(2) Cell membrane structure
(3) Flagellin protein structure
(4) Fatty acid synthetase present
Which of the following are found in extreme saline conditions?
1. Archaebacteria
2. Eubacteria
3. Cyanobacteria
4. Mycobacteria
Methanogens belong to
1. eubacteria
2. archaebacteria
3. dinoflagellates
4. slime moulds
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the
(1) thermoacidophiles
(2) methanogens
(3) eubacteria
(4) halophiles
Which one of the following statements is wrong?
(1) Golden algae are also called desmids
(2) Eubacteria are also called false bacteria
(3) Phycomycetes are also called algal fungi
(4) Cyanobacteria are also called blue-green algae
Archaebacteria differ from eubacteria in
(1) cell membrane structure
(2) mode of nutrition
(3) cell shape
(4) mode of reproduction
Organisms called Methanogens are most abundant in a
(1) cattle yard
(2) polluted stream
(3) hot spring
(4) sulphur rock
Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups called
(1) eubacteria and archaea
(2) cyanobacteria and diatoms
(3) protists and mosses
(4) liverworts and yeasts
Bacterial leaf blight of rice is caused by a species of
(1) Xanthomonas
(2) Pseudomonas
(3) Alternaria
(4) Erwinia