FLOWER MCQ ASSIGNMENT

1	One of the following is not a modified leaf Petal Bract Bracteole Carpel Ans:Bracteole
2	[A]: Flowers of Crotalaria are described as complete [R]: Crotalaria flowers have bracts and bracteoles Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true but R is not the correct explanation of A
3	[A]:Bisexual flowers are always complete [R]: They have both androecium and gynoecium Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans: A is false but R is true
4	Match the following List – I List – II A)Given plant has either male I)Acalypha or female flowers B)Given plant has male and II)Polygonum female flowers only C)Given plant has bisexual III)Solanum and female flowers D)Given plant has male, IV)Tridax female and bisexual flowers V)Vallisneria A-V, B-I, C-IV, D-II A-V, B-I, C-IV, D-III A-IV, B-V, C-II, D-I A-V, B-IV, C-I, D-II Ans:A-V, B-I, C-IV, D-II
5	With respect to distribution of sex in plants, Identify the feature that is common to Tridax, Mangifera, Borassus and Casuarina. All have bisexual flowers All have male flowers All have female flowers All have both male and female flowers Ans:All have female flowers
6	In symmetry in form and structure of flower, Ocimum flowers show similarity with the flowers of Malvaceae Canna indica Fabaceae Vallisneria Ans:Fabaceae
7	Match the following Feature of flower Plant A)Floral leaves of only I)Poinsettia 3rd node are absent B)Floral leaves of either 1st II)Ficus Gall flowers or 2nd node are absent C)Floral leaves of 1st, III)Solanum 2nd and 4th nodes are absent D)Floral leaves of either 1st or IV)Amaranthus 2nd and 3rd nodes are absent V)Tridax ray florets A-V, B-IV, C-I, D-III A-V, B-III, C-I, D-II A-IV, B-III, C-II, D-I A-V, B-IV, C-I, D-II Ans:A-V, B-IV, C-I, D-II
8	Study the following table and choose the correct combination Flowers of the Plant Character I Character II I)Hibiscus Ebracteate Bracteolate II)Tephrosia Bracteate Ebracteolate III)Datura Ebracteolate Ebracteate IV)Allium Bracteolate Bracteate I and II II and III I and III III and IV Ans:I and III
9	[A]: Flowers of Datura are cyclic [R]: Its stamens are arranged in a whorl Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true but R is not the correct explanation of A
10	Carpels are arranged in spirals over the thalamus in the flowers of I. Magnolia II. Polyalthia III. Annona IV. Hibiscus I, II, IV II, III, IV I and III I, II, III Ans:I, II, III
11	Choose the most advanced condition among the following Monoecious Dioecious Polygamous Gnnomnoecious Ans:Dioecious
12	Sex distribution in Ruscus is described as Diocious Monoecious Polygamous Androdioecious Ans:Monoecious
13	Arrange the flowers of the following plants with gradual increase in number of floral whorls I. Datura II. Ficus III. Tridax ray florets IV. Allium II, I, III, IV II, III, IV, I II, IV, III, I II, III, I, IV Ans:II, III, I, IV
14	Arrange the following aestivations with gradual increase in the number of perianth lobes having one margin inside and one margin outside i) Corolla of Hibiscus ii) Calyx of Ipomoea iii) Corolla of Fabaceae iv) Corolla of Caesalpiniaceae ii, iii, iv, i i, ii, iii, iv iii, iv, i, ii iii, ii, iv, i Ans: ii, iii, iv, i
15	Amaranthus flowers are Heterochlamydeous Homochlamydeous Achlamydeous Monochlamydeous Ans:Monochlamydeous
16	Study the following and identify the correct item groups Plant Floral character – I Floral character – II i)Annona Hemicyclic Polysepaly ii)Hibiscus Actinomorphic Hypogyny iii)Allium Trimerous Homochlamydeous iv)Datura Actinomorphic Twisted corolla i and ii iii and iv i, iii and iv i, ii, iii, iv Ans:i, ii, iii, iv
17	Ephemeral calyx is seen in Argemone Annona Hibiscus Datura Ans: Argemone
18	Filaments of anther are attached at the back of the anther in I. Oryza II. Hibiscus III. Nelumbo IV. Datura I and II II and III III, IV I, III, II Ans:I, III, II
19	Sepals and petals are spirally arranged on the thalamus of Polyalthia Magnolia Datura Dolichos Ans:Magnolia
20	Both complete and incomplete flowers are present in Acalypha Cocos Polygonum Vallisneria Ans:Polygonum
21	Concave thalamus is seen in Tridax Tephrosia Mangifera Canna Ans:Tephrosia
22	[A] : Calyx of capsicum is acrescent. [R] : Its calyx doesn’t fall off after fertilization. Both A and R are true and R is correct explanation for A Both A and R are true and R is not correct explanation for A A is true but R is false A is false but R is true Ans:A is false but R is true
23	Two short stamens and the remaining tall of an androecium are seen in the flowers of Acacia, Crotalaria Brassica, Crotalaria Brassica, Ocimum Ocimum, Cucurbita Ans:Brassica, Ocimum
24	Some stamens of the following plant do not produce pollen or form functionless pollen Dolichos Tridax Cassia Dianthus Ans:Cassia
25	Total number of stamens of a flower is equal to the total number of thecae in Solanum Acacia Parkinsonia Hibiscus Ans:Hibiscus
26	Match the following List – I List – II A)Monadelphy I)Tridax B)Union of stamens throughout II)Calotropis their length C)Staminal union with stigma III)Hibiscus D)Union of stames with 2nd IV)Crotalaria cycle of floral parts V)Cucurbita A-IV, B-V, C-I, D-III A-III, B-V, C-II, D-I A-IV, B-V, C-II, D-I A-III, B-IV, C-II, D-I Ans:A-IV, B-V, C-II, D-I
27	Match the following Description of the carpels Example of ovary A.Margins of the same carpel are I) Helianthus fused but no fusion with adjacent carpels B.Margins of adjacent carpels are II) Allium fused but not the margins of same carpel C.Margins of the same carpel and wings of adjacent carpels are fused III) Dolichos D.Margins of the adjacent carpels are fused but ovules are not present at the fused margins but present at other place IV) Brassica A-III, B-I, C-IV, D-II A-IV, B-III, C-II, D-I A-III, B-IV, C-II, D-I A-III, B-IV, C-I, D-II Ans:A-III, B-IV, C-II, D-I
28	A plant with gynobasic style shows Didynamous condition Tetradynamous condition Synandry Adelphy Ans:Didynamous condition
29	Sterile pistils or pistillodes are seen in Euphorbia Ficus Capsicum Polyalthia Ans:Ficus
30	Disappearance of septa of the ovary is noticed during the development of gynoecium of Brassica Cucurbita Dianthus Solanum Ans:Solanum
31	Androecium of Hibiscus is best described as Introrse, Dorsifixed, Dithecous, Epipetalous, Monadelphous Extrorse, Dorsifixed, Dithecous, Epipetalous, Diadelphous Extrorse, Dorsifixed, Monothecous, Epipetalous, Transverse dehiscence Introrse, Basifixed, dithecous, free, Longitudinal dehiscence Ans:Extrorse, Dorsifixed, Monothecous, Epipetalous, Transverse dehiscence
32	The two lobes of the anther are connected by connective in Datura Pisum Sida Lilium Ans:Sida
33	Match the following List – I List – II A)Stamens are fused with only perianth lobes of 1st cycle I)Allium B)Stamens are fused with 4th cycle floral parts II)Gossypium C)Stamens are fused with 2nd cycle of floral parts III)Dolichos D)Stamens are fused with both 1st and 2nd cycle of floral parts IV)Grevillea A-V, B-IV, C-II, D-I A-IV, B-V, C-I, D-III A-V, B-III, C-I, D-II A-V, B-IV, C-III, D-I Ans:A-V, B-IV, C-II, D-I
34	In one of the following plants the anther is not broken along the length of its thecae Solanum Cassytha Datura Hibiscus Ans:Solanum
35	These Placentations are clearly seen in Longitudinal section of the ovary I. Marginal II. Axile III. Basal IV. Laminar I and III III and IV I and II II and IV Ans:I and III
36	Out of 5 perianth lobes of a cycle, only perianth lobe has one margin out side and one margin inside in one of the following aestivations Imbricate Valvate Quincuncial Twisted Ans:Quincuncial
37	Ephemeral calyx is seen in a plant which has Spinous stipules Floliaceous stipules Branched stipules Spinous leaf margin Ans:Spinous leaf margin
38	Match the following No. of stamens in a flower Plant A)1 I)Crotalaria B)4 II)Brassica C)5 III)Ocimum D)6 IV)Datura V)Euphorbia A-V, B-III, C-IV, D-II A-V, B-III, C-IV, D-I A-IV, B-V, C-II, D-III A-V, B-IV, C-I, D-II Ans:A-V, B-III, C-IV, D-II
39	Study the following table and choose the correct combination Plant Pistil of Flower Androecium of Flower I)Annona Free carpels Fused stamens II)Hibiscus Fused carpels Adnated androecium III)Cucurbita Fused carpels Cohesion of stamens IV)Nymphaea Only one carpel Adnated anthers I and IV III and IV I and IV II and III Ans:II and III
40	[A]: All incomplete flowers are unisexual [R]: All unisexual flowers are incomplete Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is false but R is true