NEET Biology Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली Sample Paper

done Self Evaluation Test - Biological Classification Total Questions - 72    [Download]

• question_answer1)
  Gram-negative cells stain pink because:
  A)
   they have specialised lipids in their cell walls.
  done clear
  B)
   their peptidoglycan layer is thin.
  done clear
  C)
   their peptidoglycan layer is thick.
  done clear
  D)
   they are receptive to antibiotics.
  done clear
  View Answer play_arrow

• question_answer2)
  The given figure represent a type of virus with two parts labelled as 1 and 2. Identify the virus and the labelled parts.
  A)
   1-R2NA           2-Capsid        Virus -Tobacco Mosaic Virus
  done clear
  B)
   1-DNA            2-Capsid       Virus -Tobacco Mosaic Virus
  done clear
  C)
   1-RNA            2-Lipid          Virus -Tobacco Mosaic Virus
  done clear
  D)
   1-RNA            2-Protein       Virus -HIV
  done clear
  View Answer play_arrow

• question_answer3)
  Which of the following regarding protists, in general, is false?
  A)
   Protists are always parasitic.
  done clear
  B)
   Protists are single-celled.
  done clear
  C)
   Protists are heterotrophic.
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer4)
  An organism having cytoplasm, DNA and RNA but no cell wall is:
  A)
   Cyanobacterium
  done clear
  B)
   Mycoplasma
  done clear
  C)
   Bacterium
  done clear
  D)
   Virus
  done clear
  View Answer play_arrow

• question_answer5)
  Most of the antibiotics have no effect on viruses because:
  A)
   they kill all bacteria which form host of virus.
  done clear
  B)
   viruses are too small in size for antibiotics to act on them.
  done clear
  C)
   viruses have no metabolism of their own.
  done clear
  D)
   viruses produce a thick covering and endospores.
  done clear
  View Answer play_arrow

• question_answer6)
  During the evolution of eukaryotes from prokaryotes, which of the following did not occur?
  A)
   Infolding of the flexible cell membrane.
  done clear
  B)
   Loss of the cell wall.
  done clear
  C)
   A switch from aerobic to anaerobic metabolism.
  done clear
  D)
   Endosymbiosis of once free-living prokaryotes.
  done clear
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• question_answer7)
  Match the following columns.

  	Column-I		Column-II
  A.	Rod-shaped	I.	Coccus
  B.	Spherical	II.	Bacillus
  C.	Spiral-shaped	III.	Vibrio
  D.	Comma-shaped	IV.	Spirrillum

  A)
   A-III        B-II    C-I        D-IV
  done clear
  B)
   A-IV        B-III   C-II       D-I
  done clear
  C)
   A-II         B-I     C-IV      D-III
  done clear
  D)
   A-I         B-IV    C-III      D-II
  done clear
  View Answer play_arrow

• question_answer8)
  A tooth scraping yields large numbers of corkscrew shaped bacteria. These bacteria are referred to as:
  A)
   Bacilli
  done clear
  B)
   Cocci
  done clear
  C)
   Spirilli
  done clear
  D)
          Helici
  done clear
  View Answer play_arrow

• question_answer9)
  The bacterium Bacillus thuringiensis can withstand heating, dryness, and toxic chemicals that would kill most other bacteria. This indicates that it is probably able to form:
  A)
   Pseudopodia
  done clear
  B)
   Endotoxins
  done clear
  C)
   Endospores
  done clear
  D)
          Pili
  done clear
  View Answer play_arrow

• question_answer10)
  Which of the following facts differentiates the plant virus from other viruses?
  A)
   DNA is the genetic material
  done clear
  B)
   Obligate parasites
  done clear
  C)
   RNA is the genetic material
  done clear
  D)
   Nucleo-protein nature
  done clear
  View Answer play_arrow

• question_answer11)
  Which of the following does not contain chlorophyll?
  A)
   Fungi
  done clear
  B)
   Algae
  done clear
  C)
   Bryophyta
  done clear
  D)
   Pteridophyta
  done clear
  View Answer play_arrow

• question_answer12)
  Pseudomycelium is a characteristic feature of:
  A)
   Mushroom
  done clear
  B)
   Mucor
  done clear
  C)
   Bread mould
  done clear
  D)
   Yeast
  done clear
  View Answer play_arrow

• question_answer13)
  Match the type of protozoans given in column-I with their examples given in column-II and choose the correct option.                   

  	Column-I (Type of Protozoans)		Column-II (Examples)
  A.	Amoeboid protozoans	I.	Paramoecium
  B.	Ciliated protozoans	II.	Plasmodium
  C.	Flagellated protozoans	III.	Amoeba
  D.	Sporozoans	IV.	Trypanosoma

  A)
   A-I         B-III    C-IV      D-II
  done clear
  B)
   A-III       B-I      C-II       D-IV
  done clear
  C)
   A-III       B-I      C-IV      D-II
  done clear
  D)
   A-III       B-IV    C-I        D-II
  done clear
  View Answer play_arrow

• question_answer14)

  Read the following statements and answer the question given below.

  (i) They are saprophytic protists.

  (ii) Under suitable conditions, they form an aggregation (called plasmodium) which may grow and spread over several feet.

  (iii) During unfavourable conditions, the plasmodium differentiates and forms fruiting bodies bearing spores at their tips.

  Which of the following class of protists is being described by the above statements?
  A)
   Euglenoids
  done clear
  B)
   Dinoflagellates
  done clear
  C)
   Slime moulds
  done clear
  D)
   Protozoans
  done clear
  View Answer play_arrow

• question_answer15)

  Consider the below statements and identify the correct statements regarding classification.

  (i) Biological classification is the scientific ordering of organisms in a hierarchical series of groups on the basis of their relationships, i.e. morphological, evolutionary and others.

  (ii) Whittaker classified organisms on the basis of autotrophic and heterotrophic mode of nutrition.

  (iii) In five kingdom system of classification, living organisms can be divided into prokaryotic and eukaryotic cells on the basis of cell structure.

  A)
   (i), (ii) and (iii) 
  done clear
  B)
   (i) and (iii)
  done clear
  C)
   (ii) and (iii)
  done clear
  D)
          (i) and (ii)
  done clear
  View Answer play_arrow

• question_answer16)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I (Fungus name)		Column-II        (Commonly called)
  A.	Puccinia	I.	Yeast
  B.	Ustilago	II.	Mushroom
  C.	Agaricus	III.	Smut fungus
  D.	Saccharomyces	IV.	Rust fungus

  A)
   A-I          B-II    C-III      D-IV
  done clear
  B)
   A-II        B-III    C-IV      D-I
  done clear
  C)
   A-III       B-IV    C-I        D-II
  done clear
  D)
   A-IV       B-III    C-II       D-I
  done clear
  View Answer play_arrow

• question_answer17)
  Antibiotics are mostly obtained from:
  A)
   Bacteria
  done clear
  B)
   Viruses
  done clear
  C)
   Angiosperms
  done clear
  D)
   Fungi
  done clear
  View Answer play_arrow

• question_answer18)
  Identify the following figures.
  A)
  A - Euglena, B - Paramoecium, C - Agaricus
  done clear
  B)
  A - Euglena, B - Planaria, C - Agaricus
  done clear
  C)
  A - Planaria, B - Paramoecium, C - Agaricus
  done clear
  D)
  A - Euglemi, B - Paramoecium, C - Aspergillus
  done clear
  View Answer play_arrow

• question_answer19)
  Bacteria were regarded to be plants because:
  A)
   some of them are green.
  done clear
  B)
   they are present everywhere.
  done clear
  C)
   some of them cannot move.
  done clear
  D)
   they have a rigid cell wall.
  done clear
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• question_answer20)
  Locomotory structures are absent in:
  A)
   Sporozoans
  done clear
  B)
   Ciliates
  done clear
  C)
   Zooflagellates
  done clear
  D)
   Rhizopods
  done clear
  View Answer play_arrow

• question_answer21)

  Which of the following are the characters of Dinoflagellates?

  (i) Planktonic golden yellow algae with soap box like structure.

  (ii) Marine red biflagellated protista.

  (iii) Appear yellow, green, brown, blue and red in colour.

  (iv) Biflagellated organisms with pellicle.

  (v) Saprophytic or parasitic unicellular forms.

  A)
   (i), (ii) and (iii) only
  done clear
  B)
   (ii), (iv) and (v) only
  done clear
  C)
   (ii) and (iii) only
  done clear
  D)
   (ii) and (v) only
  done clear
  View Answer play_arrow

• question_answer22)
  How many kingdoms contain eukaryotes in five kingdom system of classification of R.H Whittaker?
  A)
   Four kingdoms
  done clear
  B)
   One kingdom
  done clear
  C)
   Two kingdoms
  done clear
  D)
   Three kingdoms
  done clear
  View Answer play_arrow

• question_answer23)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I (Kingdom)		Column-II (Class)
  A.	Plantae	I.	Arhaebacteria
  B.	Fungi	II.	Euglenoids
  C.	Protista	III.	Phycomucetes
  D.	Monera	IV.	Algae

  A)
   A-IV        B-III   C-II       D-I
  done clear
  B)
   A-I         B-II     C-III      D-IV
  done clear
  C)
   A-III       B-IV    C-II       D-I
  done clear
  D)
   A-IV        B-II    C-III      D-I
  done clear
  View Answer play_arrow

• question_answer24)
  Litmus is obtained from:
  A)
   Lichen
  done clear
  B)
   Algae
  done clear
  C)
   Fungi
  done clear
  D)
   Protozoa
  done clear
  View Answer play_arrow

• question_answer25)
  A bacteriophage is:
  A)
   a virus attacking a bacterium.
  done clear
  B)
   a bacterium attacking a virus.
  done clear
  C)
   a stage in the life-cycle of bacterium.
  done clear
  D)
   virus attacking another virus.
  done clear
  View Answer play_arrow

• question_answer26)
  Black water fever is caused by:
  A)
   Plasmodium malariae
  done clear
  B)
   P. ovule
  done clear
  C)
   P. falciparum
  done clear
  D)
   P. vivax
  done clear
  View Answer play_arrow

• question_answer27)

  Identify the correct statements regarding archaebacteria.

  (i) Archaebacteria differs from other bacteria in having different cell wall structure.

  (ii) Their cell wall is made up of cellulose and contains high amount of unsaturated fatty acid, which is responsible for their survival in extreme conditions.

  (iii) Thermoacidophiles have dual ability to tolerate high temperature as well as high acidity.

   
  A)
   (i) and (ii)
  done clear
  B)
   (ii) and (iii)
  done clear
  C)
   (i) and (iii)
  done clear
  D)
  (i), (ii) and (iii)
  done clear
  View Answer play_arrow

• question_answer28)

  Read the given statements and answer the question.

  (i) It includes unicellular as well as multicellular fungi.

  (ii) In multicellular forms, hyphae are branched and septate.

  (iii) Conidiophore produces conidia (spores) exogenously in chain.

  (iv) Sexual spores are ascospores produced endogenously in chain.

  (v) Fruiting body is called ascocarp.

  Identify the correct class of fungi which have all the above given characteristics.
  A)
   Phycomycetes
  done clear
  B)
   Sac fungi
  done clear
  C)
   Club fungi
  done clear
  D)
   Fungi imperfecti
  done clear
  View Answer play_arrow

• question_answer29)
  Contractile vacuoles of Paramoecium are analogous to:
  A)
   Sweat glands of mammals
  done clear
  B)
   Uriniferous tubules
  done clear
  C)
   Gastrovascular cavity of Hydra
  done clear
  D)
   Typhlosole of earthworm
  done clear
  View Answer play_arrow

• question_answer30)

  Members of Phycomycetes are found:

  (i) in aquatic habitats

  (ii) on decaying wood

  (iii) in moist and damp places

  (iv) as obligate parasite on plants

  Which of the statements given above are correct?

   
  A)
   (i) and (ii)
  done clear
  B)
  (ii), (iii) and (iv)
  done clear
  C)
  (i), (ii) and (iii)
  done clear
  D)
  (i),  (ii), (iii) and (iv)
  done clear
  View Answer play_arrow

• question_answer31)
  The symbiotic association of fungi and algae is called:    
  A)
                                         Lichen  
  done clear
  B)
                                  Mycorrhiza
  done clear
  C)
   Rhizome          
  done clear
  D)
   Endomycorrhiza
  done clear
  View Answer play_arrow

• question_answer32)
  Which of the following combinations of characters is true for slime moulds?
  A)
   Parasitic, plasmodium with true walls, spores dispersed by air currents.
  done clear
  B)
   Saprophytic, plasmodium without walls, spores dispersed by water.
  done clear
  C)
   Parasitic, plasmodium without walls, spores dispersed by water.
  done clear
  D)
   Saprophytic, plasmodium without walls, spores dispersed by air currents.
  done clear
  View Answer play_arrow

• question_answer33)
  Nutritionally bacteria are:
  A)
   Autotrophic      
  done clear
  B)
          Symbiotic
  done clear
  C)
   Parasitic                      
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer34)
  Which bacteria would function best in hot temperatures\[(45-60{}^\circ C)\]?
  A)
   Psychrophiles
  done clear
  B)
   Thermophiles
  done clear
  C)
   Mesophiles
  done clear
  D)
   All would do equally well
  done clear
  View Answer play_arrow

• question_answer35)
  If the generation time of a bacterium is 40 minutes and a culture containing  \[{{10}^{7}}\]  cells/ml is grown for 4 hours, then calculate its population after that period.            
  A)
   \[64\times {{10}^{7}}\]    
  done clear
  B)
  \[32\times {{10}^{7}}\]
  done clear
  C)
  \[6\times {{10}^{7}}\]
  done clear
  D)
  \[40\times {{10}^{7}}\]
  done clear
  View Answer play_arrow

• question_answer36)
  Smallest virus is:      
  A)
                          Foot and Mouth virus   
  done clear
  B)
                  Alfalfa Mosaic virus                      
  done clear
  C)
   Pseudomonas                        
  done clear
  D)
   TMV
  done clear
  View Answer play_arrow

• question_answer37)
  Yeast is an important source of:
  A)
   Vitamin C    
  done clear
  B)
          Vitamin B
  done clear
  C)
   Vitamin A      
  done clear
  D)
          Vitamin D
  done clear
  View Answer play_arrow

• question_answer38)
  In manufacturing of bread, it becomes porous  due to release of \[C{{O}_{2}}\] by the action of:        
  A)
   Virus  
  done clear
  B)
                                  Yeast
  done clear
  C)
   Bacteria         
  done clear
  D)
          Protozoans
  done clear
  View Answer play_arrow

• question_answer39)
  Which of the following statements is correct for both blue-green algae and bacteria?
  A)
   Both show anaerobic respiration.
  done clear
  B)
   Both have chlorophyll pigment.
  done clear
  C)
   Both are devoid of true nucleus.
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer40)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Chrysophytes	I.	Paramoecium
  B.	Dinoflagellates	II.	Euglena
  C.	Euglenoids	III.	Gonyaulax
  D.	Protozoans	IV	Diatoms

  A)
   A-I       B-III     C-II       D-IV
  done clear
  B)
   A-II        B-IV    C-III      D-I
  done clear
  C)
   A-IV       B-II     C-III      D-I
  done clear
  D)
   A-IV       B-III    C-II       D-I
  done clear
  View Answer play_arrow

• question_answer41)
  The phylogenetic system of classification was put forth by:
  A)
   Carolus Linnaeus
  done clear
  B)
   George Bentham and Joseph Dalton Hooker
  done clear
  C)
   Theophrastus
  done clear
  D)
   Adolf Engler and Karl PrantI
  done clear
  View Answer play_arrow

• question_answer42)
  Plasmodium, the parasite, belongs to class:
  A)
   Sarcodina   
  done clear
  B)
          Ciliata
  done clear
  C)
   Sporozoa         
  done clear
  D)
   Dinophyceae
  done clear
  View Answer play_arrow

• question_answer43)
  In the five kingdom system of classification, which single kingdom out of the following can include blue-green algae, nitrogen fixing bacteria and methanogenic archaebacteria?
  A)
   Monera            
  done clear
  B)
   Fungi
  done clear
  C)
   Plantae            
  done clear
  D)
   Protista
  done clear
  View Answer play_arrow

• question_answer44)

  Read the following statements and answer the question.

  (i) Some members are saprophytes or parasites while a large number of them are decomposers of litter and help in mineral cycling.

  (ii) They reproduce only by asexual spores known as conidia.

  (iii) Mycelium is septate and branched.

  (iv) Altemaria, Colletotrichum and Trichoderma are examples of this class.

  Which of the following class of fungi is being described by the above statements?

  A)
   Phycomycetes   
  done clear
  B)
          Deuteromycetes
  done clear
  C)
   Basidiomycetes             
  done clear
  D)
   Ascomycetes
  done clear
  View Answer play_arrow

• question_answer45)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Streptomyces	I.	Food poisoning
  B.	Rhizobium	II.	Source of antibiotics
  C.	Nitrosomonas	III.	Nitrogen fixation
  D.	Acetobacter	IV.	Nitrification
  		V.	Vinegar synthesis

  A)
   A-II        B-III    C-I        D-V
  done clear
  B)
   A-II        B-III    C-IV      D-V
  done clear
  C)
   A-IV       B-V     C-I        D-III
  done clear
  D)
   A-V        B-I      C-III      D-IV
  done clear
  View Answer play_arrow

• question_answer46)
  Which one of the following pairs is not correctly matched?
  A)
   Anabaena   -   Cyanobacteria
  done clear
  B)
   Amoeba   -    Protozoa
  done clear
  C)
   Gonyaulax  -   Dinoflagellates
  done clear
  D)
   Albugo      -   Chrysophytes
  done clear
  View Answer play_arrow

• question_answer47)
  The cell wall of fungi is made up of:
  A)
   Chitin  
  done clear
  B)
          Cellulose
  done clear
  C)
   Pectin  
  done clear
  D)
          Suberin
  done clear
  View Answer play_arrow

• question_answer48)
  The main difference between Gram positive and Gram negative bacteria lies in the composition of:
  A)
   Cilia                
  done clear
  B)
          Cell wall
  done clear
  C)
   Nucleolus             
  done clear
  D)
         Cytoplasm
  done clear
  View Answer play_arrow

• question_answer49)
  LPP-1 is a:
  A)
   Bacterium        
  done clear
  B)
          Fungus
  done clear
  C)
   Bacteriophage
  done clear
  D)
          Cyanophage
  done clear
  View Answer play_arrow

• question_answer50)
  The conditions which would be favoured by thermoacidophiles are:
  A)
   Hot and alkaline
  done clear
  B)
   Snow and acidic
  done clear
  C)
   Hot sulphur spring
  done clear
  D)
   Gut of cows
  done clear
  View Answer play_arrow

• question_answer51)
  Natural system of classification differs from artificial system in:                  
  A)
   employing only one floral trait
  done clear
  B)
   taking only one vegetative trait
  done clear
  C)
   bringing out similarities and dissimilarities
  done clear
  D)
   developing evolutionary trends
  done clear
  View Answer play_arrow

• question_answer52)
  The genetic material in viruses is/are:
  A)
   Only RNA
  done clear
  B)
   Only DNA
  done clear
  C)
   RNA and DNA both
  done clear
  D)
   RNA or DNA i. e. one nucleic acid in a virus
  done clear
  View Answer play_arrow

• question_answer53)
  Which of the following fungi are edible?
  A)
   Agaricus campestris
  done clear
  B)
   Morchella esculenta
  done clear
  C)
   Podaxon prodaxis
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer54)
  Match the terms given in column-I with their examples given in column-II and choose the correct option.

  A.	Ascus	I.	Spirulina
  B.	Basidium	II.	Penicillium
  C.	Protista	III.	Agaricus
  D.	Cyanobacteria	IV.	Euglena
  E.	Animalia	V.	Sponges

  A)
   A-II        B-III    C-IV      D-V       E-I
  done clear
  B)
   A-I         B-II     C-III      D-V       E-IV
  done clear
  C)
   A-II      B-V      C-III      D-I        E-IV
  done clear
  D)
   A-II      B-III     C-IV      D-I        E-V
  done clear
  View Answer play_arrow

• question_answer55)
  Which protist reproduces both by binary fission and conjugation?
  A)
   Amoeba        
  done clear
  B)
          Paramoecium
  done clear
  C)
   Euglena           
  done clear
  D)
   Monocystis
  done clear
  View Answer play_arrow

• question_answer56)
  Which of the following statements is not correct for methanogens?
  A)
  They are archaebacteria.
  done clear
  B)
  They live in marshy areas.
  done clear
  C)
  Methane is their preferred carbon source.
  done clear
  D)
  They are present in guts of several ruminant animals (cow, buffaloes) and produce biogas \[(C{{H}_{4}})\] from the dung of these animals.
  done clear
  View Answer play_arrow

• question_answer57)
  The given figure shows some structures labelled as 1, 2, 3 and 4. Which structure has the protein coat that encloses the nucleic acid?
  A)
   1        
  done clear
  B)
                      2
  done clear
  C)
   3                                
  done clear
  D)
   4
  done clear
  View Answer play_arrow

• question_answer58)
  Enveloped virus infects/enters the host cell through:
  A)
   Direct penetration
  done clear
  B)
   Injecting nucleic acid
  done clear
  C)
   Endocytosis
  done clear
  D)
   Endocytosis through chemical stimulators
  done clear
  View Answer play_arrow

• question_answer59)
  Infective stage of Entamoeba histolytica is:
  A)
   Trophozoite
  done clear
  B)
   Pre cyst
  done clear
  C)
   Uninucleate cyst
  done clear
  D)
   Tetranucleate cyst                        
  done clear
  View Answer play_arrow

• question_answer60)
  Cyanobacteria are:      
  A)
                         mosses which attack bacteria     
  done clear
  B)
           bacteria which attack cyanophyceae      
  done clear
  C)
   autotrophic organisms with phycocyanin
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer61)
  Whittaker placed prokaryotes and akaryotes in:
  A)
   Protista     
  done clear
  B)
          Protozoa
  done clear
  C)
   Plantae            
  done clear
  D)
   Monera
  done clear
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• question_answer62)
  Viruses that infect bacteria, multiply and cause their lysis, are called:
  A)
   Lysozymes                   
  done clear
  B)
   Lipolytic
  done clear
  C)
   Lytic               
  done clear
  D)
          Lysogenic
  done clear
  View Answer play_arrow

• question_answer63)
  Archaea differ from eubacteria in which one of the following features?
  A)
   They have a rigid wall.
  done clear
  B)
   Their cell wall lacks peptidoglycan component.
  done clear
  C)
   They have 16s rRNA.
  done clear
  D)
   They are very ancient.
  done clear
  View Answer play_arrow

• question_answer64)
  Leishmania tropica produces:
  A)
   Sleeping sickness           
  done clear
  B)
   Malaria
  done clear
  C)
   Dysentery                    
  done clear
  D)
   Oriental sores
  done clear
  View Answer play_arrow

• question_answer65)
  Common bread mold is:
  A)
   Yeast     
  done clear
  B)
                      Rhizopus
  done clear
  C)
   Bacteria        
  done clear
  D)
          Virus
  done clear
  View Answer play_arrow

• question_answer66)
  Which of the following fixes atmospheric N?
  A)
   Nostoc             
  done clear
  B)
          Algae
  done clear
  C)
   Methanogens   
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer67)
  Which of the following is not a character of protista?
  A)
   Protists are prokaryotic.
  done clear
  B)
   Some protists have cell walls.
  done clear
  C)
   Mode of nutrition is both autotrophic and heterotrophic.
  done clear
  D)
   Body organisation is cellular.
  done clear
  View Answer play_arrow

• question_answer68)
  Which of the following statements is not correct for viruses?
  A)
   Viruses are obligate parasites.
  done clear
  B)
   Viruses can multiply only when they are inside the living cells.
  done clear
  C)
   Viruses cannot pass through bacterial filters.
  done clear
  D)
   Viruses are made up of protein and DNA or RNA (never both DNA and RNA).
  done clear
  View Answer play_arrow

• question_answer69)
  Plasmogamy is fusion of:
  A)
   Two haploid cells including their nuclei
  done clear
  B)
   Two haploid cells without nuclear fusion
  done clear
  C)
   Sperm and egg
  done clear
  D)
   Sperm and two polar nuclei
  done clear
  View Answer play_arrow

• question_answer70)
  When fungi feed on dead organic matter, they are known as:
  A)
   Dimorphic                    
  done clear
  B)
   Parasites
  done clear
  C)
   Saprophytes                 
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer71)
  Ergot is caused by:
  A)
   Claviceps         
  done clear
  B)
          Penicillium
  done clear
  C)
   Aspergillus                    
  done clear
  D)
   Rhizobium
  done clear
  View Answer play_arrow

• question_answer72)
  Koch's postulates are related to:
  A)
   Cell structure of bacteria
  done clear
  B)
   Cell structure of micro-organisms
  done clear
  C)
   Laws of diseases
  done clear
  D)
   Origin of micro-organisms
  done clear
  View Answer play_arrow