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Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
Q851 Allen (A) NCERT BASED QUESTIONS MCQ
In ascomycetes and basidiomycetes, the dikaryotic cell is :-
A.
Haploid
B.
Diploid
C.
Triploid
D.
Polyploid
Q852 Allen (A) NCERT BASED QUESTIONS MCQ
Which of the following is not a member of class phycomycetes ?
A.
Albugo
B.
Mucor
C.
Rhizopus
D.
Neurospora
Q853 Allen (A) NCERT BASED QUESTIONS MCQ
The mycelium is aseptate and coenocytic in:-
A.
Phycomycetes
B.
Basidiomycetes
C.
Deuteromycetes
D.
Ascomycetes
Q854 Allen (A) NCERT BASED QUESTIONS MCQ
Septate and branched mycelium is found in:-
A.
Basidiomycetes
B.
Deuteromycetes
C.
Ascomycetes
D.
All the above
Q855 Allen (A) NCERT BASED QUESTIONS MCQ
Select correct matched pair / pairs :-
A.
Claviceps ā€“ Ascomycetes
B.
Morels ā€“ Ascomycetes
C.
Agaricus ā€“ Basidiomycetes
D.
All the above
Q856 Allen (A) NCERT BASED QUESTIONS MCQ
Asexual reproduction takes place by conidia formation in :-
A.
Aspergillus
B.
Penicillium
C.
Colletotrichum
D.
All the above
Q857 Allen (A) NCERT BASED QUESTIONS MCQ
Which of the following are examples of unicellular algae ?
A.
Chlamydomonas
B.
Riccia
C.
Chlorella
D.
Both (1) & (3)
Q858 Allen (A) NCERT BASED QUESTIONS MCQ
Which of the following are not considered in five kingdom system of classification ?
A.
Lichen
B.
Virus
C.
Viroid
D.
All the above
Q859 Allen (A) NCERT BASED QUESTIONS MCQ
The name virus that means venom or poisonous fluid was given by :-
A.
Pasteur
B.
Ivanowsky
C.
Stanley
D.
Both (2) & (3)
Q860 Allen (A) NCERT BASED QUESTIONS MCQ
Viroid was discovered by :-
A.
Haeckel
B.
Pasteur
C.
T.O. Diener
D.
Theophrastus
Q861 Allen (A) NCERT BASED QUESTIONS MCQ
Bacteriophages are generally :-
A.
ss DNA virus
B.
ds DNA virus
C.
ss RNA virus
D.
ds RNA virus
Q862 Allen (A) NCERT BASED QUESTIONS MCQ
Select true statement :-
A.
Viruses are obligate parasites
B.
In Lichens, algal component is called phycobiont
C.
In Lichens, Fungal component is called mycobiont
D.
All the above
Q863 Allen (A) NCERT BASED QUESTIONS MCQ
Which group shows the most extensive metabolic diversity ?
A.
Plantae
B.
Animalia
C.
Monera
D.
Fungi
Q864 Allen (A) NCERT BASED QUESTIONS MCQ
Archaebacteria differ from other bacteria in:-
A.
Nucleoid
B.
Composition of cell wall
C.
Composition of cytoplasm
D.
Composition of genetic material
Q865 Allen (A) NCERT BASED QUESTIONS MCQ
Which group of organisms is responsible for the production of biogas from the dung of cows and buffaloes ?
A.
Methanomonas
B.
Methanogens
C.
Cyanobacteria
D.
Mycoplasma
Q866 Allen (A) NCERT BASED QUESTIONS MCQ
Choose the correct statement :-
A.
Most of the bacteria are autotrophs
B.
All bacteria are heterotrophs
C.
Some bacteria are heterotrophs
D.
Most of the bacteria are heterotrophs
Q867 Allen (A) NCERT BASED QUESTIONS MCQ
Which of the following character is common in both cyanobacteria and green plants ?
A.
Cell wall composition
B.
Presence of chlorophyll 'a'
C.
Presence of heterocyst
D.
Presence of 80s ribosome
Q868 Allen (A) NCERT BASED QUESTIONS MCQ
Nostoc can fix atmospheric nitrogen in specialised cell, called :-
A.
Chromatophore
B.
Zoospore
C.
Heterocyst
D.
Oospore
Q869 Allen (A) NCERT BASED QUESTIONS MCQ
Which process is not performed by bacterial activity?
A.
Production of antibiotics
B.
Fixing nitrogen in legumes
C.
Making curd from milk
D.
Production of pseudo mycelium
Q870 Allen (A) NCERT BASED QUESTIONS MCQ
Choose the incorrect statement regarding Mycoplasma :-
A.
They lack cell wall
B.
They are smallest living cell
C.
They can survive without oxygen
D.
They have mesosome for respiration
Q871 Allen (A) NCERT BASED QUESTIONS MCQ
Which are chief producers of oceans ?
A.
Diatoms
B.
Dinoflagellates
C.
Euglenoid
D.
Green algae
Q872 Allen (A) NCERT BASED QUESTIONS MCQ
Which organism is responsible for making the sea appear red by rapid multiplication?
A.
Euglena
B.
Paramoecium
C.
Gonyaulax
D.
Trypanosoma
Q873 Allen (A) NCERT BASED QUESTIONS MCQ
Euglenoids have a protein rich layer instead of a cell wall. This layer is called as :-
A.
Epidermis
B.
Skin
C.
Pellicle
D.
Middle layer
Q874 Allen (A) NCERT BASED QUESTIONS MCQ
Choose the incorrect statement from following:
A.
Dinoflagellates have stiff cellulosic plates on the outer surface.
B.
Euglenoids have two flagella, one lies longitudinally and the other transversely.
C.
Slime mould spores are dispersed by air currents.
D.
In diatoms, the cell walls form two thin overlapping shells, which fit together as in a soap box.
Q875 Allen (A) NCERT BASED QUESTIONS MCQ
Which group of organisms is used to make bread and beer?
A.
Rhizopus
B.
Yeast
C.
Albugo
D.
Neurospora