Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?

1. Paramecium and Plasmodium belong to the same kingdom as that of Penicillium

2. Lichen is a composite organism formed from the symbiotic association of an algae and a protozoan

3. Yeast used in making bread and beer is a fungus

4. Nostoc and Anabaena are examples of Protista

Maximum nutritional diversity is found in the group

1. Fungi

2. Animalia

3. Monera

4. Plantae

Organisms called Methanogens are most abundant in a

1. cattle yard

2. polluted stream

3. hot spring

4. sulphur rock

Which one of the following organisms is not an example of eukaryotic cell?

1. Escherichia coli

2. Euglena viridis

3. Amoeba proteus

4. Paramecium caudatum

Which one of the following is wrongly matched?

Single-celled eukaryotes are included in 

Infectious proteins are present in

1. gemini viruses

2. prions

3. viroids

4. satellite viruses

T. O. Diener discovered a

1. free infectious RNA

2. free infectious DNA

3. infectious protein

4. bacteriophage

Cell wall is absent in

1. Aspergillus

2. Funaria

3. Mycoplasma

4. Nostoc

Which of the following shows coiled RNA strand and capsomeres?

1. Polio virus

2. Tobacco mosaic virus

3. Measles virus

4. Retrovirus