Biological Classification PYQ — Page 4

Some hyperthermophilic organisms that grow in highly acidic ( $\mathrm{pH} 2$ ) habitats belong to the two groups called

Infectious proteins are present in

Given below is the diagram of a bacteriophage. In which one of the OPTIONs, all the four parts A, B, C and D are correct ?  

Membrane-bound organelles are absent in

Virus envelope is known as

Select the correct combination of the statements (A-D) regarding the characteristics of certain organisms. A. Methanogens are Archaebacteria, which produce methane in marshy areas. B. Nostoc is a filamentous blue-green algae, which fixes atmospheric nitrogen. C. Chemosynthetic autotrophic bacteria synthesize cellulose from glucose. D. Mycoplasma lack a cell wall and can survive without oxygen.

Single-celled eukaryotes are included in

Phylogenetic system of classification is based on:

Oxygenic photosynthesis occurs in

T.O.Diener discovered a :

Which one is the wrong pairing for the disease and its causal organism?

T O Diener discovered a

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statements is true about archaea?

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statement is true about archaea?

Cellulose is the major component of cell walls of

Thermococcus, Methanococcus and Methanobacterium exemplify

Trichoderma harzianum has proved a useful micro-organism for

Thermococcus, Methanococcus and Methanobacterium examplify

A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of:

Which one of the following statements about mycoplasma is wrong?

Ergot of rye is caused by a species of:

Which pair of the following belongs to Basidiomycetes?

Biological organization starts with:

Which one of the following statements is correct?