Q. No.Which one of the following is wrongly matched?
|
(1) |
Puccinia |
– Smut |
|
(2) |
Root |
– Exarch protoxylem |
|
(3) |
Cassia |
– Imbricate aestivation |
|
(4) |
Root pressure |
– Guttation |
Difficulty Level:
Single-celled eukaryotes are included in
(1) Protista
(2) Fungi
(3) Archaea
(4) Monera
Difficulty Level:
Membrane-bound organelles are absent in
(1) Saccharomyces
(2) Streptococcus
(3) Chlamydomonas
(4) Plasmodium
Difficulty Level:
Virus envelope is known as
(1) capsid
(2) virion
(3) nucleoprotein
(4) core
Difficulty Level:
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
Difficulty Level:
Infectious proteins are present in
(1) gemini viruses
(2) prions
(3) viroids
(4) satellite viruses
Difficulty Level:
Oxygenic photosynthesis occurs in
(1) Chromatium
(2) Oscillatoria
(3) Rhodospirillum
(4) Chlorobium
Difficulty Level:
T. O. Diener discovered a
(1) free infectious RNA
(2) free infectious DNA
(3) infectious protein
(4) bacteriophage
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Bacterial leaf blight of rice is caused by a species of
(1) Xanthomonas
(2) Pseudomonas
(3) Alternaria
(4) Erwinia
Difficulty Level:
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 from prokaryotes
Difficulty Level:
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