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?
Options
(a) Archaea resemble eukarya in […]
In the five-kingdom system of classification, which single kingdom out of the following can include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?
Options
(a) Fungi (b) Plantae (c) Protista (d) Monera
Correct […]
In prokaryotes, the genetic material is
Options
(a) linear DNA with histones (b) circular DNA with histones (c) linear DNA without histones (d) circular DNA without histones
Correct Answer:
circular DNA without histones
In five kingdom system, the main basis of classification is
Options
(a) structure of nucleus (b) mode of nutrition (c) structure of cell wall (d) asexual reproduction
Correct Answer:
mode of nutrition
Explanation: […]
In eubacteria, a cellular component that resembles eukaryotic cells is :
Options
(a) plasma membrane (b) nucleus (c) ribosomes (d) cell wall
Correct Answer:
plasma membrane
Explanation:
No explanation available. Be the first […]
How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosomes, Porphyra, Wolffia
Options
(a) Four (b) Five (c) Six (d) Three
Correct Answer:
Six
Explanation:
No […]
First life on earth was
Options
(a) Cyanobacteria (b) Chemoheterotrophs (c) Autotrophs (d) Photoautotrophs
Correct Answer:
Chemoheterotrophs
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Ethanol is commercially produced through a particular species of:
Options
(a) Saccharomyces (b) Clostridium (c) Trichoderma (d) Aspergillus
Correct Answer:
Saccharomyces
Explanation:
No explanation available. Be the first to write the explanation for […]
Ergot of rye is caused by a species of
Options
(a) uncimula (b) ustilago (c) claviceps (d) phytophthora
Correct Answer:
claviceps
Explanation:
No explanation available. Be the first to write the explanation for […]
During the formation of bread it becomes porous due to release of CO2 by the action of
Options
(a) Yeast (b) Bacteria (c) Virus (d) Protozoans
Correct Answer:
Yeast
Explanation:
No explanation available. […]
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