Which among the following is not a prokaryote?
1. Saccharomyces
2. Mycobacterium
3. Nostoc
4. Oscillatoria

Select the wrong statement:

After karyogamy followed by meiosis, spores are produced exogenously in?

Ciliates differ from all other protozoans in?

Which of the following are found in extreme saline conditions?

1. Archaebacteria

2. Eubacteria

3. Cyanobacteria

4. Mycobacteria

Which of the following components provides sticky character to the bacterial cell?

(1) Cell wall

(2) Nuclear membrane

(3) Plasma membrane

(4) Glycocalyx

Viroids differ from viruses in having;

1. DNA molecules without protein coat

2. RNA molecules with protein coat

3. RNA molecules without protein coat

4. DNA molecules with protein coat 

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

1. Pseudomonas

2. Mycoplasma

3. Nostoc

4. Bacillus

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