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Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
KCET 1998; DUMET 2009 Q476 Errorless Viruses_Viruses MCQ
Which one of the following are intracellular obligate parasites [NCERT Pg. No. 20]
A.
Bacteria
B.
Viruses
C.
Slime moulds
D.
Blue-green algae
MP PMT 1998 Q477 Errorless Viruses_Viruses MCQ
The water of Holy Ganga, river is pure due to the presence of
A.
Cyanophages
B.
Hydrophytes
C.
Bacteria
D.
Bacteriophages
MP PMT 1998 Q478 Errorless Viruses_Viruses MCQ
Sometimes when a virus attacks a bacterium, neither the virus multiplies nor the bacterium dies. This phenomenon is called as
A.
Adsorption
B.
Assimilation
C.
Four types
D.
Five types
RPMT 1997 Q479 Errorless Shape and nutrition of bacteria_Monera MCQ
Gram -ve and +ve bacteria have cell membrane made up of
A.
Proteins and lipids
B.
Cellulose
C.
Fats
D.
Chitin
CBSE PMT 1997, 98 Q480 Errorless Shape and nutrition of bacteria_Monera MCQ
The DNA of E.coli is
A.
Single stranded and linear
B.
Single stranded and circular
C.
Double stranded and linear
D.
Double stranded and circular
MPPMT 1997, 98, 2000, 09; Kerala PMT 2000, 09; CBSE PMT 2002; DUMET 2010; MHCET 2015 Q481 Errorless Life cycle/Reproduction in bacteria_Monera MCQ
In Griffith's experiment, the conversion of R-type to S-type of Diplococcus pneumoniae when mixed with heat killed Stype is called Or The uptake of naked DNA by bacteria is called [WB JEE 2016] Or Bacteria reproduce sexually by [MP PMT 2000]
A.
Mutation
B.
Transduction
C.
Transfection
D.
Transformation
CBSE PMT 1997; BHU 2002, 03, 08; J & K CET 2005, 08; DUMET 2009; Odisha JEE 2010; MP PMT 2012 Q482 Errorless Economic importance of bacteria_Monera MCQ
Which of the following is free-living aerobic nonphotosynthetic nitrogen fixing bacterium
A.
Rhizobium
B.
Azotobacter
C.
Nostoc
D.
Azospirillum
MP PMT 1997; BVP 2000; AFMC 2008 Q483 Errorless Bacterial diseases_Monera MCQ
'Citrus canker' is caused by a [NCERT Pg. No. 14]
A.
Fungus
B.
Bacterium
C.
Virus
D.
Nematoda
RPMT 1997 Q484 Errorless Mycoplasma_Monera MCQ
What is incorrect for mycoplasma
A.
They are osmotically inactive
B.
Show absence of cell wall
C.
Are sensitive to modern antibiotics
D.
Are obligate intracellular parasites
MP PMT 1997; Kerala PMT 2010 Q485 Errorless Cyanobacteria/Blue green algae_Monera MCQ
Heterocysts are found in certain
A.
Viruses
B.
Bacteria
C.
Cyanobacteria
D.
Mycoplasmas
MP PMT 1997 Q486 Errorless Cyanobacteria/Blue green algae_Monera MCQ
Unicellular cyanobacteria reproduce asexually by
A.
Conjugation
B.
Fragmentation
C.
Binary fission
D.
Hormogones
JIPMER 1997; KCET 1999; CPMT 2003; VITEEE 2008 Q487 Errorless Photosynthetic and consumer_Protists MCQ
Which one of the following can photosynthesise its food
A.
Hydra
B.
Paramecium
C.
Monocystis
D.
Euglena
CPMT 1997; Manipal 1999; Pb. PMT 1999; BHU 2002 Q488 Errorless Protozoa_Protists MCQ
Infective stage of Entamoeba histolytica is
A.
Trophozoite
B.
Pre-cyst
C.
Uninucleate cyst
D.
Tetranucleate cyst
CPMT 1997: AMU (Med.) 2001; MP PMT 2002 Q489 Errorless Protozoa_Protists MCQ
Sandfly is causative agent of
A.
Kala-azar
B.
Sleeping sickness
C.
Typhoid
D.
Dysentery
RPMT 1997. 99; CPMT 1998, 2009; MP PMT 2001; Odisha JEE 2004; NEET (Phase-I) 2016 Q490 Errorless Fungi_General_Fungi MCQ
The cell wall of fungi is made up of
A.
Chitin
B.
Cellulose
C.
Pectin
D.
Suberin
RPMT 1997; CPMT 2000; BVP 2000; HPMT 2005; BHU 2006; DPMT 2007 Q491 Errorless Fungi_General_Fungi MCQ
The disease of potato responsible for famous famine of Europe was caused by or late blight of potato is caused by
A.
Colletotrichum falcatum
B.
Phytophthora infestans
C.
Potato mosiac virus
D.
Alternaria solani
AIIMS 1997 Q492 Errorless Fungi_General_Fungi MCQ
Plasmogamy is fusion of
A.
Two haploid cells including their nuclei
B.
Two haploid cells without nuclear fusion
C.
Sperm and egg
D.
Sperm and two polar nuclei
DPMT 1997 Q493 Errorless Fungi_General_Fungi MCQ
A dikaryotic cell has
A.
Two haploid nuclei
B.
Diploid zygotes
C.
Two similar nuclei
D.
Two dissimilar haploid nuclei
MP PMT 1997 Q494 Errorless Fungi_General_Fungi MCQ
Algal fungi are placed in
A.
Ascomycetes
B.
Basidiomycetes
C.
Phycomycetes
D.
Deuteromycetes
RPMT 1997; BCECE 2005 Q495 Errorless Mucor and Rhizopus_Fungi MCQ
Multinucleated filament of Rhizopus is Or Mycelium of Mucor/ Rhizopus is [MP PMT 2000]
A.
Coenocytic
B.
Conidia
C.
Heterothallus
D.
Homothallus
MP PMT 1997 Q496 Errorless Self Evaluation Test_Fungi MCQ
In Mucor sp. usually isogamy takes between
A.
Same strains
B.
+ and āˆ’ strains
C.
Zygospores
D.
Microspores
AIIMS 1997; MP PMT 2010 Q497 Errorless Self Evaluation Test_Fungi Numerical
Yeast is
AFMC 1997 Q498 Errorless Viruses_Viruses MCQ
Coliphage T2 has
A.
ssRNA
B.
ssDNA
C.
dsRNA
D.
dsDNA
MP PMT 1997; VITEEE 2008 Q499 Errorless Viruses_Viruses MCQ
Phages that show lysogenic cycle are called
A.
Temperate phages
B.
Virulent phages
C.
Avirulent phages
D.
Lytic phages
AFMC 1996 Q500 Errorless Shape and nutrition of bacteria_Monera MCQ
Many bacteria bear minute hairy structures on their cell wall, these are called [NCERT Pg. No. 91]
A.
Hairs
B.
Flagella
C.
Pili
D.
Cilia