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Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
Odisha JEE 2009 Q126 Errorless Protozoa_Protists MCQ
Which is not true for Paramecium
A.
Under unfavourable conditions, form cysts
B.
Presence of large number of cilia on whole body surface
C.
Contain contractile vacuoles for osmoregulation
D.
Use pseudopodia for capturing prey
DUMET 2009 Q127 Errorless Protozoa_Protists MCQ
Which of the following combination of characters is true of slime moulds [NCERT Pg. No. 15]
A.
Parasitic, Plasmodium with true walls, spores dispersed by air currents
B.
Saprophytic, Plasmodium without walls, spores dispersed by water
C.
Parasitic, Plasmodium without walls, spores dispersed by water
D.
Saprophytic, Plasmodium without walls, spores dispersed by air currents
AIIMS 2009, 13 Q128 Errorless Self Evaluation Test_Protists MCQ
These organisms are fungus like in one phase of their life cycle and Amoeba like in another phase of their life cycle
A.
Diatoms
B.
Slime molds
C.
Dinoflagellates
D.
Water molds
CBSE PMT 2009 Q129 Errorless Fungi_General_Fungi MCQ
Which one of the following has haplontic life cycle
A.
Funaria
B.
Polytrichum
C.
Ustilago
D.
Wheat
CBSE PMT 2009 Q130 Errorless Fungi_General_Fungi MCQ
Which one is the wrong pairing for the disease and its causal organism
A.
Late blight of potato - Alternaria solani
B.
Black rust of wheat – Puccinia graminis
C.
Loose smut of wheat – Ustilago nuda
D.
Root-knot of vegetables-Meloidogyne sp
Kerala PMT 2009 Q131 Errorless Fungi_General_Fungi MCQ
The fungus used for the commercial production of SCP is
A.
Pentadiplandra brazzeana
B.
Fusarium graminearum
C.
Brassica napus
D.
Bacillus thuringiensis
E.
Phytophthora infestans
EAMCET 2009 Q132 Errorless Mucor and Rhizopus_Fungi MCQ
Arrange the following in correct sequence with reference to sexual reproduction in Rhizopus
(I) Formation of germ tube
(II) Formation of zygophores
(III) Formation of warty wall layer of zygospore
(IV) Secretion of trisporic acid The correct sequence is
A.
IV, III, II, I
B.
IV, II, III, I
C.
II, I, IV, III
D.
I, III, II, IV
EAMCET 2009 Q133 Errorless Lichen and Mycorrhiza_Fungi MCQ
A teacher was explaining about a constant physical contact involving almost equal physiological interdependence in two different thaloid forms. He was trying to explain one of the following
A.
Mycorrhizal association
B.
Establishment of heterothallism
C.
Operation of heterothallism
D.
Advent of lichen formation
WB JEE 2009 Q134 Errorless Viruses_Viruses MCQ
The rabies virus consists of
A.
Single stranded RNA
B.
Double stranded RNA
C.
Single stranded DNA
D.
Double stranded DNA
KCET 2009 Q135 Errorless Viruses_Viruses MCQ
The agents which are known to cause CJD are
A.
Protein particles
B.
A class of bacteria
C.
A class of viruses
D.
Fungi
WB JEE 2009 Q136 Errorless Viruses_Viruses MCQ
Virus was discovered by whom
A.
Stanley
B.
Ivanowski
C.
Herelle
D.
Beijerinck
Odisha JEE 2009 Q137 Errorless Viruses_Viruses MCQ
A virion is a [NCERT Pg. No. 21]
A.
Without protein coat virus
B.
Enucleated virus
C.
Prions
D.
Virus
DUMET 2009, 10 Q138 Errorless Viruses_Viruses MCQ
HIV is classified as a retrovirus because its genetic information is carried in
A.
DNA instead of RNA
B.
DNA
C.
RNA instead of DNA
D.
Protein coat
Odisha JEE 2008 Q139 Errorless Shape and nutrition of bacteria_Monera MCQ
On the basis of r-RNA genes bacteria are divided into
A.
Gram +ve and Gram -ve
B.
Bacteria and archaebacteria
C.
Actinomycetes and mycoplasma
D.
Cyanobacteria and mycoplasma
Odisha JEE 2008 Q140 Errorless Shape and nutrition of bacteria_Monera MCQ
Helically coiled shaped bacteria are called
A.
Spirilla
B.
Cocci
C.
Bacilli
D.
Vibrio
CBSE PMT 2008 Q141 Errorless Shape and nutrition of bacteria_Monera MCQ
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
A.
Archaea completely differ from both prokaryotes and eukaryotes
B.
Archaea completely differ from prokaryotes
C.
Archaea resemble eukarya in all respects
D.
Archaea have some novel features that are absent in other prokaryotes and eukaryotes
Kerala PMT 2008 Q142 Errorless Shape and nutrition of bacteria_Monera MCQ
Which one of the following is not a characteristic of gram positive bacteria
A.
Cell wall is smooth
B.
Mesosomes are distinctively prominent
C.
Basal body of flagellum contains 2 rings
D.
Outer membrane is present
E.
Murein content of cell wall is 70 – 80%
WB JEE 2008 Q143 Errorless Shape and nutrition of bacteria_Monera MCQ
Shorter generation time of E.coli compared to eukaryotes may be explained on the basis of
A.
Shape
B.
Large surface: volume ratio
C.
Presence of cell wall
D.
Absence of organelles
J & K CET 2008; CPMT 2009; AFMC 2012 Q144 Errorless Shape and nutrition of bacteria_Monera MCQ
Teichoic acid is found in
A.
Gram (+ve) bacteria
B.
Gram (-ve) bacteria
C.
Cyanobacteria
D.
Mycoplasma
WB JEE 2008 Q145 Errorless Life cycle/Reproduction in bacteria_Monera MCQ
Bacteria commonly reproduce vegetatively by [NCERT Pg. No. 16] Or Which one of the following processes results in the formation of clone of bacteria [KCET 2010]
A.
Binary fission
B.
Budding
C.
Conjugation
D.
Oidia
CBSE PMT 2008 Q146 Errorless Economic importance of bacteria_Monera MCQ
Thermococcus, Methanococcus and Methanobacterium exemplify
A.
Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
B.
Bacteria that contain a cytoskeleton and ribosomes
C.
Archaebacteria that contain protein homologous to eukaryotic core histones
D.
Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
AlIMS 2008 Q147 Errorless Bacterial diseases_Monera MCQ
In the following table identify the correct matching of the crop, its disease and the corresponding pathogen Crop Disease Pathogen
A.
Citrus Canker Pseudomonas rubrilineans
B.
Potato Late blight Fusarium udum
C.
Brinjal Root-knot. Meloidogyne incognita
D.
Pigeon pea Seed gall Phytophthora infestans
Odisha JEE 2008 Q148 Errorless Mycoplasma_Monera MCQ
Penicillin and Vancomycin do not affect the mycoplasma because
A.
There is no cell wall
B.
There is no nucleus
C.
There is no mitochondria
D.
There is no golgi body
Odisha JEE 2008 Q149 Errorless Protozoa_Protists MCQ
Paramecium is a
A.
Protozoan
B.
Bacterium
C.
Virus
D.
Annelid
Kerala PMT 2008; AMU (Med.) 2012 Q150 Errorless Protozoa_Protists MCQ
Match the following and choose the correct combination from the options given [NCERT Pg. No. 14, 15, 16]
Column-IColumn-II
(A)Chrysophytes
(B)Dinoflagellates
(C)Euglenoids
(D)Protozoans
(P)Paramecium
(Q)Euglena
(R)Gonyaulax
(S)Diatoms
A.
A − P, B − R, C − Q, D − S
B.
A − Q, B − S, C − R, D − P
C.
A − S, B − Q, C − R, D − P
D.
A − R, B − S, C − P, D − Q
E.
A − S, B − R, C − Q, D − P