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Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
Q901 Allen (B) ANALYTICAL QUESTIONS MCQ
Which bacteria is utilized in Gober gas plant?
A.
Methanogens
B.
Nitrifying bacteria
C.
Ammonifying bacteria
D.
Denitrifying bacteria
Q902 Allen (B) ANALYTICAL QUESTIONS MCQ
In bacteria, plasmid is :-
A.
Extra chromosomal material
B.
Main DNA
C.
Non functional DNA
D.
Repetitive gene
Q903 Allen (B) ANALYTICAL QUESTIONS MCQ
Sequence of which of the following is used to know the phylogeny :-
A.
m-RNA
B.
r-RNA
C.
t-RNA
D.
DNA
Q904 Allen (B) ANALYTICAL QUESTIONS MCQ
In five kingdom system, the main basis of classification :-
A.
Structure of nucleus
B.
Nutrition
C.
Structure of cell wall
D.
Asexual reproduction
Q905 Allen (B) ANALYTICAL QUESTIONS MCQ
Organisms which obtain energy by the oxidation of reduced inorganic compounds are called
A.
Photo autotrophs
B.
Chemo autotrophs
C.
Saprozoic
D.
Coproheterotrophs
Q906 Allen (B) ANALYTICAL QUESTIONS MCQ
Which one of the following bacteria has found extensive use in genetic engineering work in plants:-
A.
Clostridium septicum
B.
Xanthomonas citri
C.
Bacillus coagulens
D.
Agrobacterium tumefaciens
Q907 Allen (B) ANALYTICAL QUESTIONS MCQ
In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used:-
A.
Plantae
B.
Fungi
C.
Protista
D.
Monera
Q908 Allen (B) ANALYTICAL QUESTIONS MCQ
In oogamy, fertilization involves :-
A.
A large motile female gamete and a small nonā€“motile male gamete
B.
A small nonā€“motile female gamete and a large motile male gamete
C.
A large nonā€“motile female gamete and a small motile male gamete
D.
A large nonā€“motile female gamete and a large nonā€“motile male gamete
Q909 Allen (B) ANALYTICAL QUESTIONS MCQ
Flagella of prokaryotic and eukaryotic cells differ in :-
A.
Microtubular organization and function
B.
Type of movement and placement in cell
C.
Location in cell and mode of functioning
D.
Microtubular organization and type of movement
Q910 Allen (B) ANALYTICAL QUESTIONS MCQ
If by radiation all nitrogenase enzyme are inactivated, then there will be no :-
A.
Conversion from ammonium to nitrate in soil
B.
Fixation of nitrogen in legumes
C.
Fixation of atmospheric nitrogen
D.
Conversion from nitrate to nitrite in legumes
Q911 Allen (B) ANALYTICAL QUESTIONS MCQ
A free living nitrogenā€“fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is :-
A.
Anabaena
B.
Tolypothrix
C.
Chlorella
D.
Nostoc
Q912 Allen (B) ANALYTICAL QUESTIONS MCQ
Carbohydrates, the most abundant biomolecules on earth, are produced by :
A.
some bacteria, algae and green plant cells
B.
all bacteria, fungi and algae
C.
fungi, algae and green plant cells
D.
viruses, fungi and bacteria
Q913 Allen (B) ANALYTICAL QUESTIONS MCQ
Barophilic prokaryotes :
A.
occur in water containing high concentrations of barium hydroxide.
B.
readily grow and divide in sea water enriched in any soluble salt of barium
C.
grow and multiply in very deep marine sediments
D.
grow slowly in highly alkaline frozen lakes at high altitudes
Q914 Allen (B) ANALYTICAL QUESTIONS MCQ
Auxospores and hormocysts are formed, respectively, by :
A.
Several diatoms and a few cyanobacteria
B.
Some diatoms and several cyanobacteria
C.
Several cyanobacteria and several diatoms
D.
Some cyanobacteria and many diatoms
Q915 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following is non-cellular organism?
A.
Bacteria
B.
Fungi
C.
Algae
D.
Virus
Q916 Allen (B) ANALYTICAL QUESTIONS MCQ
Find the incorrect match :-
A.
Ustilago - belongs to class basidiomycetes
B.
Agaricus - belongs to class basidiomycetes
C.
Trichoderma - sexual cycle is found
D.
Alternaria - sexual cycle is not found
Q917 Allen (B) ANALYTICAL QUESTIONS MCQ
Find the incorrect statement about fungi :-
A.
They show a great diversity in morphology and habitats
B.
Fungi are cosmopolitan and occur in air, water, soil and as parasites also
C.
They prefer to grow in cold and dry places
D.
With the exception of yeasts, fungi are filamentous
Q918 Allen (B) ANALYTICAL QUESTIONS MCQ
Find the correct statements about fungi :-
(A) Most of the fungi are saprophytes (B) Fungi can also survive as symbionts (C) Sexual reproduction in fungi involves three steps (D) Reduction division in fungi occurs in fruiting bodies which forms haploid spores
A.
A, B are correct
B.
C, D are correct
C.
A, B & C are correct
D.
A, B, C & D are correct
Q919 Allen (B) ANALYTICAL QUESTIONS MCQ
Choose the incorrect statement regarding decomposer :-
A.
They may be prokaryotes or eukaryotes.
B.
They may be unicellular or multicellular
C.
They convert inorganic into organic compounds
D.
They play a great role in ecology
Q920 Allen (B) ANALYTICAL QUESTIONS MCQ
With respect to fungal sexual cycle, what is the correct sequence ?
A.
Karyogamy, plasmogamy & meiosis
B.
Meiosis, plasmogamy & karyogamy
C.
Plasmogamy, karyogamy & meiosis
D.
Meiosis, karyogamy & plasmogamy
Q921 Allen (B) ANALYTICAL QUESTIONS MCQ
In prokaryotes, chromatophores are ā€“
A.
Specialized granules responsible for colouration of cells
B.
Structures responsible for organizing the shape of the organism
C.
Inclusion bodies lying free inside the cells for carrying out various metabolic activities
D.
Internal membrane systems that may become extensive and complex in photosynthetic bacteria
Q922 Allen (B) ANALYTICAL QUESTIONS MCQ
All eukaryotic unicellular organisms belong to-
A.
Monera
B.
Protista
C.
Fungi
D.
Bacteria
Q923 Allen (B) ANALYTICAL QUESTIONS MCQ
The five kingdom classification was proposed by-
A.
R.H. Whittaker
B.
C.Linnaeus
C.
A. Roxberg
D.
Virchow
Q924 Allen (B) ANALYTICAL QUESTIONS MCQ
Organisms living in salty areas are called as
A.
Methanogens
B.
Halophiles
C.
Heliophytes
D.
Thermoacidophiles
Q925 Allen (B) ANALYTICAL QUESTIONS MCQ
Naked cytoplasm, multinucleated and saprophytic are the characteristics of :
A.
Monera
B.
Protista
C.
Fungi
D.
Slime molds