Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups called:

1. eubacteria and archaea

2. cyanobateria and diatoms

3. protists and mosses

4. liverworts and yeasts

Subtopic:  Kingdom Monera: Bacterial Classification |
 90%
AIPMT - 2010
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Infectious proteins are present in:
1. geminiviruses
2. prions
3. viroids
4. satellite viruses

Subtopic:  Virus, Viroids & Prions |
 78%
From NCERT
AIPMT - 2010
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Oxygenic photosynthesis occurs in:

1. Chromatium

2. Oscillatoria

3. Rhodospirillum

4. Chlorobium

Subtopic:  Kingdom Monera: Bacterial Classification |
 62%
AIPMT - 2009
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T.O. Diener discovered a:
1. free infectious RNA
2. free infectious DNA
3. infectious protein
4. bacteriophage

Subtopic:  Virus, Viroids & Prions |
 83%
From NCERT
AIPMT - 2009
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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?
1. Archaea resemble eukarya in all respects.
2. Archaea have some novel features that are absent
in other prokaryotes and eukaryotes.
3. Archaea completely differ from both prokaryotes and
eukaryotes.
4. Archaea completely differ prokaryotes.

Subtopic:  Kingdom Monera: Bacterial Cell Structure | Kingdom Monera: Bacterial Classification |
 76%
AIPMT - 2008
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Thermococcus. Methanococcus and Methanobacterium exemplify:
1. archaebacteria that contain protein homologous to eukaryotic core histones
2. archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
3. bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
4. bacteria that contain a cytoskeleton and ribosomes

Subtopic:  Kingdom Monera: Bacterial Classification |
AIPMT - 2008
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Which of the following is a slime mould?

1. Rhizopus

2. Physarum

3. Thiobacillus

4. Anabaena

Subtopic:  Kingdom Protista: Slime Moulds |
 56%
AIPMT - 2007
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Ergot of rye is caused by a species of:

1. Phytophthora

2. Uncinula

3. Ustilago

4. Claviceps

Subtopic:  Kingdom Fungi: Ascomycetes |
AIPMT - 2007
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Which pair of the following belongs to Basidiomycetes?

1. Bird's nest fungi and Pufballs

2. Puffballs and Claviceps

3. Peziza and Stinkhorns

4. Morchella and Mushrooms

Subtopic:  Kingdom Fungi: Basidomycetes |
AIPMT - 2007
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The thalloid body of a slime mould (Myxomycetes) is known as:
1. protonema
2. Plasmodium
3. fruiting body
4. mycelium

Subtopic:  Kingdom Protista: Slime Moulds |
 66%
From NCERT
AIPMT - 2006
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