MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
NEET
NEET Biology MCQ
Biological Classification Viruses, Viroids, Prions And Kingdome Monera MCQ
Quiz 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Q.1
Which of the following is correct about viroids? [NEET 2020]
0%
a) They have DNA with protein coat
0%
b) They have free DNA without protein coat
0%
c) They have RNA with protein coat
0%
d) They have free RNA without protein coat
Explanation
Die Natürlichen Pflanzenfamilien by Adolf Engler and Karl Anton Prantl is a complete revision of plant families down to generic level and often even further. As such it forms part of the Engler system of plant taxonomy. Answer : (c)
Q.2
Which of the following statements is incorrect? [NEET 2019]
0%
a) Viroids lack a protein coat.
0%
b) Viruses are obligate parasites.
0%
c) Infective constituent in viruses is the protein coat.
0%
d) Prions consist of abnormally folded proteins.
Explanation
Infective constituent in viruses is either DNA or RNA, not protein. Answer : (b)
Q.3
Which among the following is not a prokaryote ?[NEET 2018]
0%
a) Nostoc
0%
b) Mycobacterium
0%
c) Saccharomyces
0%
d) Oscillatoria
Explanation
Answer : (c)
Q.4
Match the following diseases with the causative organism and select the correct option. [NEET 2020]
Column-I
Column-II
(a) Typhoid
(i) Wuchereria
(b) Pneumonia
(ii) Plasmodium
(c) Filariasis
(iii) Salmonella
(d) Malaria
(iv) Haemophilus
0%
a) a → ii; b → i; c → iii; d → iv;
0%
b) a → iv; b → i; c → ii; d → iii;
0%
c) a → i; b → iii; c → ii; d → iv;
0%
d) a → iii; b → iv; c → i; d → ii;
Explanation
Answer : (d)
Q.5
Prokaryotic flagellum consists of … .. [ AFMC 2004]
0%
a) Fiber enclosed by protein membrane
0%
b) Fiber enclosed by unit membrane
0%
c) Helically arranged protein molecules
0%
d) Membrane enclosed 9+2 microtubular
Explanation
Answer : (c)
Q.6
Hans Ris coined the term genophore for … [ MPPMT 2007]
0%
a) Genetic material of virus
0%
b) Genetic material of fungus
0%
c) Bacterial chromosome
0%
d) Stalk supporting spores
Explanation
Answer : (c)
Q.7
Nitrogen fixing organism which can be free as well as symbiotic is … … [ BHU 1990]
0%
a) Anabaena
0%
b) Azotobacter
0%
c) Liverworts
0%
d) Mosses
Explanation
Answer : (a)
Q.8
Smallest organisms, self reproducing in the living state are … [ BHU 2012]
0%
a) Bacteria
0%
b) PPLO
0%
c) Prions
0%
d) Viruses
Explanation
Answer : (b)
Q.9
Genetic material of retroviruses is … .. [ MPPMT 2007]
0%
a) DNA
0%
b) RNA
0%
c) DNA and RNA
0%
d) Nucleoprotein complexes
Explanation
Answer : (b)
Q.10
Milk bacterium is … [MPPMT 2011]
0%
a) Acetobacter
0%
b) Diplococcus
0%
c) Lactobacillus
0%
d) Strptobacillus
Explanation
Answer : (c)
Q.11
System of classification that employs numerical data to evaluate similarities and differences is known as… [ [ HPPMT 2007]
0%
a) Cytotaxonomy
0%
b) Biosystematics
0%
c) Phenetics
0%
d) Chemotaxonomy
Explanation
Answer : (c)
Q.12
Kingdom monera includes …[ AMU 2001]
0%
a) Prokaryotes only
0%
b) Eukaryotes only
0%
c) Both a and b
0%
d) Mesokaryotes only
Explanation
Answer : (a)
Q.13
Potato leaf roll or leaf curl of Papaya are caused by … .. [ MPPMT 2002]
0%
a) Fungi
0%
b) Viruses
0%
c) Bacteria
0%
d) Nematodes
Explanation
Answer : (b)
Q.14
System of classificationused by Linnaeus was … .. [ MPPMT 1996]
0%
a) Natural system
0%
b) Artificial system
0%
c) Phylogenetic system
0%
d) Experimental taxonomy
Explanation
The system of classification in which one or very few character are considered as the key feature of classification is called as artificial system. Linnaeus put forward an 'Artificial system' of plant classification which was based on sexual characters like cryptogamia, monoecia, monandria, diandria, polyandria etc. Answer : (b)
Q.15
Blue-green algae are …
0%
a) Eubacteria
0%
b) Cyanobacteria
0%
c) Actinomycetes
0%
d) Archaebacteria
Explanation
Answer : (b)
Q.16
Type of genetic material found in bacteria is … [ BHU 2002]
0%
a) RNA bound to protein
0%
b) DNA bound to protein
0%
c) DNA not bound to protein
0%
d) RNA not bound to protein
Explanation
Answer : (c)
Q.17
Halophiles grow in concentrated salt solution due to … .. [ JIPMER 1999]
0%
a) Bacteriorhodopsin
0%
b) Branched hydrocarbon chain phospholipids
0%
c) Active absorption
0%
d) Accumulation of KCl
Explanation
The use of compatible solutes is the most common mechanism of salt resistance among halophiles., less common mechanism of defense against salt is through controlling potassium levels. This mechanism is performed by pumping in large amounts of K+ ions into the cytoplasm. To deal with the increased solute level, and to increase the solubility of the proteins within the cytoplasm, many proteins have evolved to become more acidic. Answer : (d)
Q.18
Shape of cocci bacteria is … [ AMU 2012]
0%
a) Rod-shaped
0%
b) Comma-shaped
0%
c) Spiral
0%
d) Spherical
Explanation
Answer : (d)
Q.19
A scientist having made significant contribution in the field of classification is …..[CPMT 1990]
0%
a) Pasteur
0%
b) Oparin
0%
c) Darwin
0%
d) Linnaeus
Explanation
Answer : (d)
Q.20
Which structure are found in mycoplasmas, spirochaetae and rickettsias … [ MPPMT 2011]
0%
a) DNA
0%
b) RNA
0%
c) Ribosomes
0%
d) All the above
Explanation
Answer : (d)
Q.21
Huxley’s New system is also called … .. [ kerala 2008]
0%
a) Chemotaxonomy
0%
b) Numerical taxonomy
0%
c) Biosystematics
0%
d) Phenetics
Explanation
Answer : (c)
Q.22
R-gene present on plasmid is meant for … [ AMU 2001]
0%
a) Drug resistance
0%
b) Nitrogen fixation
0%
c) Locomotion
0%
d) Exchange of genetic material
Explanation
Answer : (a)
Q.23
Virus with nucleic acid but without protein coat is … .. [ DPMT 2003]
0%
a) Virion
0%
b) Viroid
0%
c) Capsid
0%
d) Prion
Explanation
Answer : (b)
Q.24
Sexual reproduction in eubacteria takes place by …[ ASMC 2012]
0%
a) Transformation
0%
b) Transduction
0%
c) Conjugation
0%
d) All the above
Explanation
Answer : (d)
Q.25
The smallest organisms which cause diseases among plants are … [ MPPMT 1995]
0%
a) Viruses
0%
b) Fungi
0%
c) Bacteria
0%
d) Mycoplasma
Explanation
Answer : (d)
Q.26
Where from are most antibiotic extracted …. [ AFMC 2003]
0%
a) Algae
0%
b) Fungi
0%
c) Bacteria
0%
d) Plants
Explanation
Answer : (c)
Q.27
Maximum number of antibiotics got from any group is .,…. .. [ AIIMS 1997]
0%
a) Actinomycetes
0%
b) Fungi
0%
c) Eubacteria
0%
d) Viruses
Explanation
Answer : (a)
Q.28
Maximum nutritional diversity is found in … [ CBSE 2012]
0%
a) Fungi
0%
b) Monera
0%
c) plantae
0%
d) Animalia
Explanation
Answer : (b)
Q.29
Which is wall-less and smallest living cell …[ HPPMT 2012]
0%
a) Algae
0%
b) Bacteriophage
0%
c) Cyanobacteria
0%
d) Mycoplasma
Explanation
Answer : (d)
Q.30
Metachromatic granules are … .. [ DPMT 2011]
0%
a) Chromatophores in skin
0%
b) Products of insect metamorphosis
0%
c) Inclusion bodies in bacteria
0%
d) Found in metaphase
Explanation
Answer : (c)
Q.31
Phylogenetic system of classification is based on … .. [ CBSE 2009]
0%
a) Morphological features
0%
b) Chemical constituents
0%
c) Evolutionary relationships
0%
d) Floral characters
Explanation
Answer : (c)
Q.32
Cyanobacteria/Nostoc is … .. [ CBSE 2001]
0%
a) Oxygenic with nitrogenase
0%
b) Oxygenic without nitrogenase
0%
c) Non-oxygenic with nitrogenase
0%
d) Non-oxygenic without nitrogenase
Explanation
Answer : (a)
Q.33
Genetic material of virus is … ..
0%
a) DNA
0%
b) RNA
0%
c) DNA or RNA but not both
0%
d) None of the above
Explanation
Answer : (c)
Q.34
Archaebacteria live in harsh habitat like … [ HPPMT 2011]
0%
a) Extreme salty area
0%
b) Hot springs
0%
c) Marshy areas
0%
d) All the above
Explanation
Answer : (d)
Q.35
HIV is a retrovirus because its genetic information is carried in … .. [ DPMT 2009]
0%
a) DNA instead of RNA
0%
b)DNA
0%
c) RNA instead of DNA
0%
d) Protein coat
Explanation
Answer : (c)
Q.36
What is the disease Tetanus also known as … [ BHU 2005]
0%
a) Gangrene
0%
b) Shingles
0%
c) Lockjaw
0%
d) Whooping cough
Explanation
Answer : (c)
Q.37
Hydrogen donor in photosynthesis of purple sulphur bacteria is … .. [ MPPMT 1990]
0%
a) H2S
0%
b) H2O
0%
c) NH3
0%
d) H2SO3
Explanation
Answer : (a)
Q.38
isms called methanogens are most abundant in … gneetStudy Companion For more NEET and AIIMS mcq on BIOLOGICAL CLASSIFICATION( Viruses, Viroids, Prions and Kingdome Monera) Q38) Organisms called methanogens are most abundant in … [ CBSE 2011]
0%
a) Polluted stream
0%
b) Cattle yard
0%
c) Sulphur rock
0%
d) Hot spring
Explanation
Answer : (b)
Q.39
Largest population of organism of any type on earth is of … .. [ AMU 2009]
0%
a) Insects
0%
b) Algae
0%
c) Bacteria
0%
d) Fungi
Explanation
Answer : (c)
Q.40
In eubacteria, a cellular component that resembles eukaryotic cell is … [ CBSE 2011]
0%
a) Ribosome
0%
b) Cell wall
0%
c) Plasma membrane
0%
d) Nucleus
Explanation
Answer : (c)
Q.41
The term biosystematics was coined by … [ MPPMT 2010]
0%
a) Linnaeus
0%
b) Engler and Prantl
0%
c) Camp and Gilly
0%
d) Bentham and Hooker
Explanation
Answer : (c)
Q.42
A bacterial disease is … .. [ CET Chd. 2002]
0%
a) Tetanus
0%
b) Polio
0%
c) Filaria
0%
d) Malaria
Explanation
Answer : (a)
Q.43
Assertion : Severe Acute Respiratory Syndrome (SARS) originated in China Reason: China is the most populated country of the world
0%
a) Both are true with reason being correct explanation
0%
b) Both are true but reason not correct explanation
0%
c) Assertion is true but reason is wrong
0%
d) Both are wrong
Explanation
Answer : (b)
Q.44
A peculiar odour found in marshy areas and cow sheds is of gas produced by ,,, [ DPMT 2011]
0%
a) Archaebacteria
0%
b) Cyanobacteria
0%
c) Slime Mould
0%
d) Mycoplasma
Explanation
Answer : (a)
Q.45
Which one is found in alimentary canal of humans? [ RPMT 1995]
0%
a) Pseudomonas
0%
b) Rhizobium
0%
c) Bacillus
0%
d) Escherichia coli
Explanation
Answer : (d)
Q.46
Disease pneumonia is due to … .. [ MPPMT 2000 ]
0%
a) Virus
0%
b) Bacterium
0%
c) Cyanobacterium
0%
d) Protozoan
Explanation
Answer : (b)
Q.47
Diaminopimelic acid and muramic acid occur in the wall of … … [ MPPMT 1992]
0%
a) Bacteria
0%
b) Fungi
0%
c) Brown algae
0%
d) Higher plants
Explanation
Answer : (a)
Q.48
Mitotic stages are not observed in … [ KCET 2011]
0%
a) Saccharomyces
0%
b) E.coli
0%
c) Cosmarium
0%
d) Chlorella
Explanation
Answer : (b)
Q.49
Which one is included under prokaryotes? [ RPMT 1996]
0%
a) Mycoplasma
0%
b) Algae
0%
c) Ulothrix
0%
d) Mycoplasma and Blue –Green Algae
Explanation
Answer : (d)
Q.50
Which of the following is true for Nostoc … [ KCET 2012]
0%
a) Algae
0%
b) Bacteriophage
0%
c) Cyanobacteria
0%
d) Mycoplasma
Explanation
Answer : (c)
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page