NEET Biology Morphology of Flowering Plants (Root, Stem And Leaf) Question Bank

done Self Evaluation Test - Morphology of Flowering Plants Total Questions - 83

• question_answer1)
  Which is not a stem modification?
  A)
  Rhizome of ginger done clear
  B)
  Conn of Colocasia done clear
  C)
  Pitcher of Nepenthes done clear
  D)
  Tuber of potato done clear
  View Solution play_arrow

• question_answer2)
  Branches of stem are:
  A)
  exogenous in origin done clear
  B)
  endogenous in origin done clear
  C)
  partly exogenous and partly endogenous done clear
  D)
  superficial done clear
  View Solution play_arrow

• question_answer3)
  The leaves are modified into tendrils, hooks, pitcher and bladder in the following plants respectively:
  A)
  Sweet pea. Cat's nail. Nepenthes, Utricularia done clear
  B)
  Sweet pea. Cat's nail, Utricularia, Nepenthes done clear
  C)
  Nepenthes, Sweet pea. Cat's nail, Utricularia done clear
  D)
  Utricularia, Nepenthes, Cat's nail, Sweet pea done clear
  View Solution play_arrow

• question_answer4)
  Which type of function is performed by the fleshy leaves of onion and garlic?
  A)
  Storage          done clear
  B)
         Reproduction done clear
  C)
  Photosynthesis   done clear
  D)
         Protection done clear
  View Solution play_arrow

• question_answer5)
  Fibrous roots develop in maize from:
  A)
  Upper nodes     done clear
  B)
         Lower nodes done clear
  C)
  Upper intemodes done clear
  D)
         None of these done clear
  View Solution play_arrow

• question_answer6)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Tubercular storage roots	I.	Tinospora
  B.	Pneumatophores	II.	Heritiera
  C.	Haustoria	III.	Asparagus
  D.	Prop-roots	IV.	Viscum
  E.	Assimilatory roots	V.	Pandanus

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

• question_answer7)
  Fibrous root system is found in:
  A)
  Monocotyledonous plants done clear
  B)
  Dicotyledonous plants done clear
  C)
  Bryophytes done clear
  D)
  Gymnosperms done clear
  View Solution play_arrow

• question_answer8)
  Stilt roots occur in:
  A)
  Groundnut       done clear
  B)
         Rice done clear
  C)
  Sugarcane       done clear
  D)
         Wheat done clear
  View Solution play_arrow

• question_answer9)
  Napiform roots are recorded from:
  A)
  Radish               done clear
  B)
         Carrot done clear
  C)
  Beetroot        done clear
  D)
         Sweet potato done clear
  View Solution play_arrow

• question_answer10)
  Regions of roots from base to root tip are:
  A)
  Maturation zone - Cell division zone-Elongation zone done clear
  B)
  Maturation zone - Elongation zone - Cell division zone done clear
  C)
  Cell division zone - Elongation zone Maturation zone done clear
  D)
  Elongation zone - Cell division zone Maturation zone done clear
  View Solution play_arrow

• question_answer11)
  Floral formula of Tomato/Tobacco is:
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer12)
  Which one of the following is a fibre yielding plant?
  A)
  Crotalaria juncea done clear
  B)
  Cicer arietinum done clear
  C)
  Triticum vulgare done clear
  D)
  Impatiens balsamina done clear
  View Solution play_arrow

• question_answer13)
  The anthers in solanaceae are:
  A)
  Monothecous, introse done clear
  B)
  Dithecous, extrose done clear
  C)
  Dithecous, introse done clear
  D)
  Monothecous, extrose done clear
  View Solution play_arrow

• question_answer14)
  Name the family having (9) + 1 arrangement of stamens?
  A)
  Solanaceae       done clear
  B)
         Asteraceae done clear
  C)
  Liliaceae         done clear
  D)
         Fabaceae done clear
  View Solution play_arrow

• question_answer15)
  Which is correct pair for edible part?
  A)
  Tomato - Thalamus done clear
  B)
  Maize - Cotyledons done clear
  C)
  Guava - Mesocarp done clear
  D)
  Date palm - Pericarp done clear
  View Solution play_arrow

• question_answer16)
  Which of the following statements are correct?

  (i) If the stem is jointed with solid nodes and hollow intemodes, it is called caudex.

  (ii) In Tridax, the stem is decumbent.

  (iii) Conn is a condensed form of rhizome growing more or less in vertical direction.

  (iv) Sucker is an underground modificaton of stem.

  (v) Biparous type ofcymose branching is seen in Saraca.

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

• question_answer17)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Entire leaf modified	I.	Clematis into a spine.
  B.	Leaf except stipules modified into a tendril.	II.	Citrus
  C.	Stipules modified into a tendril.	III.	Euphorbia
  D.	First leaf of axillary bud modified into a spine.	IV.	Lathyrus

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

• question_answer18)
  A scar on the seed coat through which the developing seeds are attached to the fruit is called as _____.
  A)
  Testa                 done clear
  B)
         Tegmen done clear
  C)
  Hilum                done clear
  D)
         Micropyle done clear
  View Solution play_arrow

• question_answer19)
  A true fruit develops from:
  A)
  Ovary               done clear
  B)
         Thalamus done clear
  C)
  Petals                done clear
  D)
         Receptacle done clear
  View Solution play_arrow

• question_answer20)
  Catkin is a type of:
  A)
  Flower               done clear
  B)
         Inflorescence done clear
  C)
  Stem                 done clear
  D)
         All of these done clear
  View Solution play_arrow

• question_answer21)
  Which of the following are schizocarpic fruits?
  A)
  Siliqua & Legume done clear
  B)
  Capsule & Berry done clear
  C)
  Lomentum & Capsule done clear
  D)
  Carcerulus & Lomentum done clear
  View Solution play_arrow

• question_answer22)
  Which of the following correctly represents the type of fruits given below.
  A)
  A-Berry; B-Caryopsis; C-Drupe; D-Sorosis; E-Aggregate done clear
  B)
  B-Berry; C-Caryopsis; D-Drupe; A-Sorosis; E-Aggregate done clear
  C)
  B-Berry; C-Caryopsis; D-Drupe; E-Legume; A-Aggregate done clear
  D)
  A-Berry; C-Caryopsis; D-Drupe; B-Sorosis; E-Composite done clear
  View Solution play_arrow

• question_answer23)
  Which one is the correct answer for cohesion of stamens in the given diagram?
  A)
  Monoadelphous  done clear
  B)
         Diadelphous done clear
  C)
  Polyadelphous   done clear
  D)
         Synandrous done clear
  View Solution play_arrow

• question_answer24)
  The perianth is the term used when:
  A)
  androecium and gynoecium are similar. done clear
  B)
  androecium and calyx are similar. done clear
  C)
  corolla and gynoecium are similar. done clear
  D)
  calyx and corolla are similar. done clear
  View Solution play_arrow

• question_answer25)
  Eye of potato is:
  A)
  Axillary bud    done clear
  B)
         Accessory bud done clear
  C)
  Adventitious bud done clear
  D)
         Apical bud done clear
  View Solution play_arrow

• question_answer26)
  Flowers are sessile in:
  A)
  Raceme         done clear
  B)
         Spike done clear
  C)
  Corymb         done clear
  D)
         Umbel done clear
  View Solution play_arrow

• question_answer27)
  Sleeping movements commonly occur in plants of family:
  A)
  Leguminosae     done clear
  B)
         Liliaceae done clear
  C)
  Malvaceae       done clear
  D)
         Compositae done clear
  View Solution play_arrow

• question_answer28)
  Fibres are usually obtained from the members of:
  A)
  Solanaceae       done clear
  B)
         Malvaceae        done clear
  C)
  Leguminosae     done clear
  D)
         Cruciferae        done clear
  View Solution play_arrow

• question_answer29)
  A sterile stamen is known as:                
  A)
  Staminode      done clear
  B)
         Anther           done clear
  C)
  Pollen grain      done clear
  D)
         Filament done clear
  View Solution play_arrow

• question_answer30)
  Capitulum inflorescence is a modification of:  
  A)
  Raceme         done clear
  B)
         Panicle          done clear
  C)
  Spike      done clear
  D)
         Cyme           done clear
  View Solution play_arrow

• question_answer31)
  An example of false fruit is:
  A)
  Apple      done clear
  B)
         Pomegranate done clear
  C)
  Grapes              done clear
  D)
         Mango done clear
  View Solution play_arrow

• question_answer32)
  Prop roots of Banyan tree are meant for:
  A)
  Respiration done clear
  B)
  Absorption of water from soil done clear
  C)
  Providing support to big tree done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer33)
  Reserve food is mainly found in:
  A)
  underground stems. done clear
  B)
  underground modified tap roots. done clear
  C)
  underground modified adventitious roots. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer34)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Leguminosae	I.	Axile placentation
  B.	Papilionatae	II.	Tetradynamous
  C.	Solanaceae	III.	Marginal placentation
  D.	Cruciferae	IV.	Diadelphous stamens
  E.	Malvaceae	V.	Epipetalous stamens

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

• question_answer35)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Wheat	I.	False fruit
  B.	Groundnut	II.	Caryopsis
  C.	Grapes	III.	Lomentum
  D.	Mango	IV.	Parthenocarpic fruit
  E.	Apple	V.	Drupe

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

• question_answer36)
  The most important function of inflorescence is to help in:
  A)
  increasing length of plant. done clear
  B)
  attracting insects for cross pollination. done clear
  C)
  dispersal of seeds. done clear
  D)
  release of pollen grains. done clear
  View Solution play_arrow

• question_answer37)
  In water chestnut, the thorns are modification of:
  A)
  Leaflet           done clear
  B)
         Corolla done clear
  C)
  Leaf                  done clear
  D)
         Calyx done clear
  View Solution play_arrow

• question_answer38)
  New banana plants develop from:
  A)
  Rhizome        done clear
  B)
         Sucker done clear
  C)
  Stolen               done clear
  D)
         Seed done clear
  View Solution play_arrow

• question_answer39)
  Choose the correct combinations.

  (i) Hypogynous flower

  (ii) Perigynous flower

  (iii) Epigynous flower

  A)
  A-(i), B-(ii), C-(iii) done clear
  B)
  A-(i), B-(iii), C-(ii) done clear
  C)
  A-(iii),B-(ii),C-(i) done clear
  D)
  A-(iii), B-(i), C-(ii) done clear
  View Solution play_arrow

• question_answer40)
  Which option is correctly matched with the diagrams?
  A)
  A-Valvate, B-Twisted, C-Imbricate, D-Vexillary done clear
  B)
  A-Vexmaiy, B-Valvate, C-Twisted, D-Imbricate done clear
  C)
  A-Imbricate, B-Vexillary, C-Valvate, D-Twisted done clear
  D)
  A-Twisted, B-Imbricate, C-Vexillary, D-Valvate done clear
  View Solution play_arrow

• question_answer41)
  The largest leaf belongs to:
  A)
  Nerium           done clear
  B)
         Tobacco done clear
  C)
  Victoria         done clear
  D)
         Rafflesia done clear
  View Solution play_arrow

• question_answer42)
  A modification of leaf is:
  A)
  Phyllode  done clear
  B)
         Phylloclade done clear
  C)
  Cladode         done clear
  D)
         Conn done clear
  View Solution play_arrow

• question_answer43)
  Axis between corolla and androecium is:
  A)
  Anthophore      done clear
  B)
         Gynophore done clear
  C)
  Gynandrophore   done clear
  D)
         Androphore done clear
  View Solution play_arrow

• question_answer44)
  Choose the product that is derived from style and stigma.                                       
  A)
  Saffron    done clear
  B)
         Fenugreek           done clear
  C)
      Asafoetida       done clear
  D)
         Psyllium                done clear
  View Solution play_arrow

• question_answer45)
  Opium is obtained from which part of the plant, Papaver somniferum?                           
  A)
  Inflorescence done clear
  B)
  Fruit (unripe) done clear
  C)
  Male part (dried)  done clear
  D)
                                Seeds                                        done clear
  View Solution play_arrow

• question_answer46)
  Floral formula of Malvaceae:
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer47)
  Edible part of banana is:
  A)
  epicarp. done clear
  B)
  mesocarp and less developed endocarp. done clear
  C)
  endocarp and less developed mesocarp. done clear
  D)
  epicarp & mesocarp. done clear
  View Solution play_arrow

• question_answer48)
  Staminodes commonly occur in:
  A)
  Liliaceae done clear
  B)
  Papilionatae done clear
  C)
  Caesalpinoideae done clear
  D)
  All of the above          done clear
  View Solution play_arrow

• question_answer49)
  Velamen is found in:      
  A)
  roots of screwpine. done clear
  B)
  aerial and terrestrial roots of orchids. done clear
  C)
  leaves ofFicus elastica. done clear
  D)
  aerial roots of orchids. done clear
  View Solution play_arrow

• question_answer50)
  A fibrous root system is better adapted than tap root system for:
  A)
  Storage of food done clear
  B)
  Anchorage of plant to soil done clear
  C)
  Absorption of water and minerals done clear
  D)
  Transport of water and organic food done clear
  View Solution play_arrow

• question_answer51)
  Buttress roots are found in:
  A)
  Sorghum        done clear
  B)
         banyan done clear
  C)
  Terminalia       done clear
  D)
         Pandanus done clear
  View Solution play_arrow

• question_answer52)
  Which of the following is a modified stem for the protection of plants from browsing animals?
  A)
  Tendrils         done clear
  B)
         Thorns done clear
  C)
  Rhizome        done clear
  D)
         Tuber done clear
  View Solution play_arrow

• question_answer53)
  Select the statements which are not applicable to the family solanaceae?

  (i) Epipetalous and syngenesious anthers.

  (ii) Bicarpellary and syncarpous ovary.

  (iii) Oblique ovary with axile placentation.

  (iv) Stamen six, arranged in two whorls.

  (v) Bicarpellary, syncarpous and inferior ovary

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

• question_answer54)
  A fruit developing from an inflorescence is called:
  A)
  Etaerio          done clear
  B)
         Composite fruit done clear
  C)
  Achene          done clear
  D)
         Berry done clear
  View Solution play_arrow

• question_answer55)
  The inflorescence in cauliflower is:
  A)
  Compound corymb done clear
  B)
  Corymb done clear
  C)
  Umbel done clear
  D)
  Catkin done clear
  View Solution play_arrow

• question_answer56)
  Water melon is:
  A)
  Pome                done clear
  B)
         Sorosis done clear
  C)
  Pepo  done clear
  D)
         Drupe done clear
  View Solution play_arrow

• question_answer57)
  The most advanced type of inflorescence is:
  A)
  Corymb         done clear
  B)
         Capitulum done clear
  C)
  Spadix              done clear
  D)
         Catkin done clear
  View Solution play_arrow

• question_answer58)
  An edible inflorescence is:   
  A)
  Brassica rapa    done clear
  B)
         Mustard done clear
  C)
  Raphanus sativus done clear
  D)
         Brassica oleracea done clear
  View Solution play_arrow

• question_answer59)
  Leaves are changed into spines in xerophytic structures called:
  A)
  Phyllode         done clear
  B)
         Stolen done clear
  C)
  Phylloclade  done clear
  D)
         All of these done clear
  View Solution play_arrow

• question_answer60)
  Match column-I with column-II and choose the correct option given below.

  	Column-I		Column-II
  A.	Apple	I.	Outer portion of receptacle
  B.	Coconut	II.	Fleshy thalamus
  C.	Jack fruit	III.	Thalamus & pericarp
  D.	Guava	IV.	Endosperm
  E.	Pineapple	V.	Bract, perianth & seeds

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

• question_answer61)
  Pneumatophores are found in:
  A)
  the vegetation which is found in marshy and saline lake. done clear
  B)
  the vegetation which is found in saline soil. done clear
  C)
  xerophytic condition. done clear
  D)
  hydrophytic condition. done clear
  View Solution play_arrow

• question_answer62)
  Root hairs are ontogenetically:
  A)
  Exogenous       done clear
  B)
         Endogenous done clear
  C)
  Both (a) and (b) done clear
  D)
         None of these done clear
  View Solution play_arrow

• question_answer63)
  Outer covering ofepiphytic roots is:        
  A)
  Osmophore      done clear
  B)
         Rhizophore     done clear
  C)
  Velamen     done clear
  D)
         Pneumatophore done clear
  View Solution play_arrow

• question_answer64)
  Stipules are found in:                      
  A)
  All dicots             done clear
  B)
                     All dicots and some monocots          done clear
  C)
  Some dicots and monocots             done clear
  D)
  All dicots and monocots                done clear
  View Solution play_arrow

• question_answer65)
  A biparous cyme ending in uniparous cyme constitutes:
  A)
  Verticillastep    done clear
  B)
         Panicle done clear
  C)
  Hypanthodium   done clear
  D)
         Cyathium done clear
  View Solution play_arrow

• question_answer66)
  When stamens are superior, the flower is:
  A)
  Hypogynous done clear
  B)
  Perigynous done clear
  C)
  Epigynous done clear
  D)
  Hypogynous done clear
  View Solution play_arrow

• question_answer67)
  Axis of inflorescence is:
  A)
  Pedicel           done clear
  B)
         Peduncle done clear
  C)
  Petiole           done clear
  D)
         All of these done clear
  View Solution play_arrow

• question_answer68)
  The main purpose of phyllotaxy for the leaves is to provide sufficient____.
  A)
  soil                    done clear
  B)
         air done clear
  C)
  water                 done clear
  D)
         light done clear
  View Solution play_arrow

• question_answer69)
  Most reduced form of stem is found in:
  A)
  Bulb        done clear
  B)
         Rhizome done clear
  C)
  Tuber                done clear
  D)
         Corm done clear
  View Solution play_arrow

• question_answer70)
  Match column-I with column-II and choose the correct option.

  	Column-I		Column-II
  A.	Spike	I.	Bougainvillea
  B.	Capitulum	II.	Coleus
  C.	Dichasial cyme	III.	Adhatoda
  D.	Multiparous cyme	IV.	Zinnia
  E.	Verticillaster	V.	Asclepias

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

• question_answer71)
  In a raceme, the flowers are:
  A)
  arranged in a basipetal succession done clear
  B)
  arranged in a acropetal succession done clear
  C)
  bisexual done clear
  D)
  monosexual done clear
  View Solution play_arrow

• question_answer72)
  Hypanthodium is:
  A)
  Thalamus        done clear
  B)
         Fruit done clear
  C)
  Inflorescence     done clear
  D)
         Ovary done clear
  View Solution play_arrow

• question_answer73)
  The botanical name of groundnut is:
  A)
  Cicer arietinum   done clear
  B)
         Glycine max done clear
  C)
  Arachis hypogea done clear
  D)
         Lens esculentus done clear
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• question_answer74)
  Which of the following genera is characterized by the production of geocarpic fruits?
  A)
  Cucurbita        done clear
  B)
         Pisum done clear
  C)
  Glycine          done clear
  D)
         Arachis done clear
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• question_answer75)
  Given inflorescence is a:
  A)
  Cyathium done clear
  B)
  Dichasial cyme done clear
  C)
  Umbel done clear
  D)
  Verticillaster done clear
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• question_answer76)
  Leaves of dicotyledonous plants possess ______ venation, while ______ venation is the characteristic of most monocotyledons.
  A)
  Reticulate and Parallel done clear
  B)
  Parallel and Reticulate done clear
  C)
  Reticulate and Perpendicular done clear
  D)
  Obliquely and Parallel done clear
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• question_answer77)
  Prickles of rose are:       
  A)
  Modified leaves done clear
  B)
  Modified stipules done clear
  C)
  Exogenous in origin done clear
  D)
  Endogenous in origin done clear
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• question_answer78)
  Pentamerous, actinomorphic flowers, bicarpellate ovary with oblique septa and fruit, a capsule of         berry, are the characteristic features of:               
  A)
  Brassicaceae done clear
  B)
  Solanaceae done clear
  C)
  Liliaceae              done clear
  D)
                             Asteraceae                                       done clear
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• question_answer79)
  The botanical name for 'Shikakai' is:
  A)
  Acacia catechu done clear
  B)
  Acacia concinna done clear
  C)
  Acacia Senegal done clear
  D)
  Acacia nilotica done clear
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• question_answer80)
  Which family yields poor man's protein?
  A)
  Papilionatae       done clear
  B)
       Cruciferae           done clear
  C)
       Solanaceae          done clear
  D)
                             Mimosoidae done clear
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• question_answer81)
  Why are drupes called stony fruits?
  A)
  Hard epicarp       done clear
  B)
                               Hard mesocarp   done clear
  C)
                              Hard endocarp     done clear
  D)
  Both (a) and (b) done clear
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• question_answer82)
  Which of the following option shows the correct match of type of placentation with their figure and examples?

  	Column-I		Column-II	Column-III
  A.	Marginal	I.		Sunflower, Marigold
  B.	Axile	II.		Dianthus, Primrose
  C.	Parietal	III.		Mustard. Argemone
  D.	Free central	IV.		China rose, Tomato, Lemon
  E.	Basal	V.		Pea

             
  A)
  A-V, t;   B-II, s;               C-I, r;                D-III, q;             E-IV, p done clear
  B)
  A-I, t;    B-II, s;               C-III, r;              D-IV, p;             E-V, q done clear
  C)
  A-V, p;  B-II, s;               C-I, q;               D-III, r;              E-IV, t   done clear
  D)
  A-V, p;  B-III, q;             C-II, s;               D-I, t;                E-IV, r done clear
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• question_answer83)
  Choose the correct option for 1, 2 and 3.
  A)
  1 - zone of elongation, 2 - zone ofmeiosis, 3 - zone of mitosis done clear
  B)
  1 - zone of maturation, 2 - zone ofmeristematic activity, 3 - zone of elongation done clear
  C)
  1 - zone of mitosis, 2 - zone of elongation, 3 - zone of root cap done clear
  D)
  1 - region of maturation, 2 - region of elongation, 3 - meristematic activity done clear
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