Saturday, July 16, 2011

Reproduction in Angiosperms

1.      [A] : Loranthus has ategmic ovules.
[R] : Integuments are absent only in partial parasites.
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
*3) A is true but R is false  4) A is false but R is true
2.      Arrange the following parts of ovule from anterior to posterior
i) Chalaza                             ii) Nucellus                              iii) Funiculus                            iv) Hilum
1) ii, iv, i, iii                            2) iii, iv, i, ii                               *3) ii, i, iv, iii                             4) iii, i, iv, ii
3.      Micropyle and chalaza are not aligned on the same straight line in
i) Anatropous ovule                                                              ii) Amphitropous ovule         
iii) Hemitropous ovule                                                          iv) Campylotropous ovule
1) i and ii                               2) ii and iii                                3) iii and iv                               *4) ii and iv
4.      Circinotropous ovule is a/an
*1) Anatropous ovule with coiled funiculus                     2) Orthotropous ovule with coiled funiculus
3) Anatropous ovule with coiled body                               4) Amphitropous ovule with coiled funiculus
5.      Raphe is very clearly seen in the ovules of
1) Asteraceae, Alismaceae                                                 2) Plumbaginaceae, Polygonaceae
3) Cactaceae, Ranunculaceae                                           *4) Cactaceae, Plumbaginaceae
6.      Meiosis without cytokinesis is seen during megasporogenesis of
1) Polygonum                      2) Allium                                  *3) Fritillaria                             4) Lilium
7.      All the nuclei of embryosac do not have same genetic constitution in
i) Polygonum                       ii) Allium                                  iii) Peparomia                         iv) Fritillaria
1) i, ii, iii                                 2) i, iii, iv                                   *3) ii, iii, iv                                4) i, ii, iv
8.      Complete cell wall of megaspore mother cell behaves as cell wall of central cell in
1) Allium                               *2) Fritillaria                            3) Plumbago                           4) Polygonum
9.      Pollen tubes are formed in the ovules of
1) Dicots                               2) Monocots                            3) Phanerogams                    *4) Gymnosperms
10.    In an ovule of angiosperm, the pollen tube failed to enter into the embryosac. The most possible reason for this is
1) Removal of egg cell from the embryosac                   2) Removal of antipodals from the embryosac
3) Removal of polar nuclei from the central cell             *4) Removal of the two synergids
11.    Horse-shoe shaped female gametophyte is seen in
*1) Alisma                            2) Opuntia                               3) Brassica                              4) Polygonum
12.    Identify the haploid pair
1) Egg cell, Archesporial cell                                              2) Polar nucleus, Secondary nucleus
3) Perisperm, Endosperm                                                   *4) Antipodal, Synergid
13.    Arrange the following plants in a sequence of gradual increase in distance between the Funiculus and Micropyle of their ovules
i) Alisma                               ii) Tridax                                   iii) Brassica                              iv) Ranunculus
*1) ii, i, iii, iv                          2) iii, i, iv, ii                               3) i, ii, iii, iv                               4) i, iii, ii, iv
14.    Embryosac of angiosperms is embedded in the
*1) Nucellus                         2) Anther                                  3) Integument                         4) Funiculus
15.    Ebbryosac was first discovered in
1) Anatropous ovule                                                             *2) Orthotropous ovule         
3) Campylotropous ovule                                                    4) Amphitropous ovule
16.    The most common type of ovule in Angiosperms is
1) orthotropous                    *2) Anatropous                       3) Campylotropous                4) Amphitropous
17.    Match the following

List – I

List – II


A
B
C
D
A)
Dikaryotic cell
i)
Endothecial cell
1)
V
III
II
IV
B)
Cell that forms pollen tube
ii)
Epidermal cell
2)
III
V
IV
I
C)
Cell that gives rise male gametes
iii)
Central cell
*3)
III
V
IV
II
D)
Cell that is part of stomium
iv)
Generative cell
4)
III
I
II
V


v)
Vegetative cell





18.    Upright ovule body is seen in
I. Orthotropous ovule                                                            II. Anatropous ovule              
III. Circinotropous ovule                                                       IV. Hemitropous ovule
1) I and II                               2) II and III                                3) III and IV                              *4) I and III
19.    In one of the following types of embryosacs all the nuclei of female gametophyte genetically resemble each other in all aspects.
1) Allium type                      *2) Polygonum type              3) Fritillaria type                      4) Peparomia
20.    Polygonum type of embryosac was first discovered by
*1) Strasburger                    2) Nawaschin                         3) Hofmeister                          4) Nageli
21.    Filiform apparatus is chemically made of
1) Cellulose, Proteins and Lipids                                       *2) Cellulose and Pectin 
3) Cellulose, pectin and Proteins                                       4) Proteins and Lipids
22.    Match the following related to the Polygonum type of embryosac of angiosperms

List – I

List – II


A
B
C
D
A)
Cell lacks its own cell wall
i)
Antipodal
*1)
III
IV
II
I
B)
Two morphlogically similar cells
ii)
Egg cell
2)
III
I
IV
II
C)
Cell involved in syngamy
iii)
Central cell
3)
IV
III
I
II
D)
Ephemeral cell
iv)
Synergids
4)
III
II
IV
I


v)
Vegetative cell






23.    Cell A of embryosac nourishes the cell B of the same embryosac after fertilization. A and B are respectively
1) Synergid, egg cell          *2) Central cell, egg cell       3) Synergid, central cell        4) Antipodal, egg cell
24.    Cytokinesis lacking Meiosis is shown by the ovules of
1) Piper nigrum                   *2) Fritillaria                            3) Allium                                  4) Polygonum
25.    Nucellus shows enormous curvature in
1) Circinotropous ovule     2) Anatropous ovule              *3) Amphitropous ovule        4) Hemitropous ovule
26.    Match the following

List – I

List – II


A
B
C
D
A)
Ovules of Plant with syngenecious anthers
i)
Circinotropous
*1)
III
V
IV
I
B)
Ovules of plant with Tetradynamy
ii)
Hemitropous
2)
III
V
IV
II
C)
Ovules of plant without sieve plates
iii)
Anatropous
3)
IV
III
I
II
D)
Ovule of plant with green, succulent, flattened stem with areoles
iv)
Orthotropous
4)
IV
V
II
I


v)
Campylotropous





 Pollination

1.      Rhizome with flowers is seen in
1) Streptocarpus                 *2) Commelina                      3) Gloriosa                               4) Zingiber
2.      Revolute stigmatic lobes are seen in plants with the following pollination contrivance
1) Sensitive stigmas           *2) Safety mechanism          3) Heterostyly                          4) Herkogamy
3.      Mammals are involved in the cross pollination of
1) Bignonia                          *2) Kigelia                               3) Cestrum                              4) Aroids
4.      Cross pollination in plants with simple spadix is best described as
*1) Malacophilous dicliny                                                    2) Malacophilous monocliny
3) Ornithophilous dicliny                                                     4) Chiropteriphilous dicliny
5.      [A] : Streptocarpus has aerial cleistogamous flowers.
[R] : Chlistogamous flowers are always aerial.
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
*3) A is true but R is false  4) A is false but R is true
6.     Assertion : Abutilon shows cross pollination
Reason : The pollengrains of a flower of Abutilon cannot germinate on the stigma of same flower
*1) A and R are correct, R is the correct explanation of A
2) A and R are correct, R is not the correct explanation of A
3) A is correct, R is wrong  4) A is wrong, R is correct
7.      Plant whose inflorescence has sympodial axis adnated to the stem with Amphiphloeic eustele  has the following pollination contrivance.
1) Self sterillity                     2) Dicliny                                 *3) Dichogamy                       4) Herkogamy
8.      [A]: Cleistogamy is seen in Commelina
[R]: Closed flowers always show Autogamy
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
*3) A is true but R is false  4) A is false but R is true
9.      Diclinous and monoclinous flowers are seen in
I. Tridax                                 II. Mangifera                            III. Polygonum
1) I and II                               2) II and III                                *3) I, II, III                                  4) I and III
10.    Only xenogamy is shown by
*1) Cycas                              2) Cocos                                  3) Ficus                                    4) Tridax
11.    Self pollination is absent in
I. Smilax                                II. Ruscus                                 III. Pisum
*1) I, II                                    2) I, II, III                                    3) II, III                                       4) only I
12.    Stigmatic lobes are closed during the breakage of anthers in
*1) Martynia                         2) Helianthus                          3) Hibiscus                              4) Abutilon
13.    Match the following

Plant description

Pollination contrivance


A
B
C
D
A)
Plant whose leaf apex is modified into tendril
i
Heterostyly
1)
II
III
I
V
B)
Plant with Axillary tendril
ii
Herkogamy
2)
II
V
I
IV
C)
Plant in which stamens of three different heights are seen in different flowers
iii
Movement of floral parts
3)
II
V
III
IV
D)
Plant with spinous leaf margins and ephermeral calyx
iv)
Autogamy
*4)
II
V
I
III


v)
Self sterility





14.    Pollination is must for the formation of
1) Fruit                                   2) Embryo                               *3) Seed                                   4) Zygote
15.    Pollination between genetically different plants of the same species is must in
1) Dolichos                           *2) Vallisneria                         3) Ficus                                    4) Hibiscus
16.    Abiotic agents are involved in cross pollination in
I. Caltha                                II. Oryza                                    III. Zostera                                IV. Aroids
1) I and II                               2) II and IV                               3) III and I                                 *4) II and III
17.    Choose the correct statement
1) Argemone always carries out autogamy                     *2) Some species of Ranunculus are homogamous
3) Disc floret of Head shows only self pollination          4) Dolichos does not show self pollination
18.    Self pollination is promoted during night time in
1) Tridax                               2) Streptocarpus                    3) Commelina                        *4) Argemone
19.    Homogamous plant which does not show autogamy is
*1) Martynia                         2) Clerodendron                    3) Schrophularia                    4) Oldenladia
20.    The pollination contrivance in a plant with pseudobulb is
1) Pollen prepotency          *2) Self sterility                       3) Herkogamy                         4) Dichogamy
21.    Match the following

List – I

List – II


A
B
C
D
A)
Climber with horizontally growing underground stem
i)
Protogyny
*1)
IV
I
II
V
B)
Plant whose inflorescence with porous anthers appears as extraaxillary
ii)
Heterostyly
2)
IV
V
III
II
C)
All species of the genus whose ovary has hemitropous ovules
iii)
Pollen prepotency
3)
V
I
III
IV
D)
Tendrillar plant with petiolar nectaries
iv)
Herkogamy
4)
IV
I
V
II


v)
Self sterility






22.    Study the following table and choose the correct combination




I)
Commelina
Dimorphic bisexual flowers
Underground cleistogamy
Ii)
Poinsettia
Dimorphic unisexual flowers
Bract nectaries
Iii)
Oxalis
Trimorphic bisexual flowers
Two types of modified stems for vegetative reproduction
iv)
Amorphophallus
Trimorphic unisexual flowers
Malacophilous
1) I and III                              2) I, II, IV                                   3) II, III, IV                                 *4) I, II, III, IV
23.    [A]: Yucca shows animal specific allogamy
[R]: Yucca has panicle
1) Both A and R are true and R is the correct explanation of A
*2) Both A and R are true but R is not the correct explanation of A
3) A is true but R is false    4) A is false but R is true
24.    Style is bent perpendicularly on the ovary to avoid self pollination in
*1) Gloriosa                          2) Hibiscus                              3) Datura                                  4) Tridax
25.    Abutilon shows
I. Mechanical self incompatibility                                       II. Self incompatibility favored by time
III. Phisiological cross compatibility                                   IV. Pollinator self incompatibility
1) I and IV                             2) only II and III                       *3) All except IV                      4) All




1
2
2
2
3
2
4
1
5
3
6
1
7
3
8
3
9
3
10
1
11
1
12
1
13
4
14
3
15
2
16
4
17
2
18
4
19
1
20
2
21
1
22
4
23
2
24
1
25
3










 1.      Pollen tube entry into the ovule where the integuments and Nucellus meet at the posterior region was first discovered in a plant
1)  Which is Aquatic                                                              2) That has Herkogamous flowers      
3) Whose stamens are fused among themselves along their entire length               
*4) that has Pendent inflorescence consisting of acropetally arranged sessile unisexual flowers
2.      The pollen tube usually releases the male gametes into the following structures of Embryosac
1) Egg cell                            *2) Synergid                            3) Antipodals                           4) Central cell
3.      Plant in which pollen tube enters into the ovule through integuments or Funiculus has
I. Parietal placentation                                                         II. Polysiphonous pollen grains            
III. Campylotropous ovules
1) I and III                              2) II and III                                *3) I and II                                4) II alone
4.      The growth of pollen tube towards the embryosac is best described as
1) Chemotaxy                      2) Chemonasty                      *3) Chemotropism                 4) Intercalary  
5.      The total number of Nuclei involved in double fertilization of Lilium is
1) 2                                        *2) 4                                          3) 5                                            4) 3
6.      The following structures of flower are not completely shedded off after fertilization in the plants of Asteraceae
I. Corolla                               II. Calyx                                    III. Gynoecium                         IV. Bracteoles
1) II and IV                            2) III only                                  3) I, II, III                                    *4) II and III
7.      The common feature between the endosperm of Gymnosperms and Angiosperms is
1) Similar ploidy                                                                    2) Both are post fertilized products      
3) Nourished by embryo                                                    *4) Nourishes the embryo
8.      Match the following

Character of the plant

Seed nature


A
B
C
D
A)
Polyarch roots with multiple epidermis
i)
Perispermic
*1)
IV
V
II
III
B)
Pentarch roots
ii)
Endospermic
2)
V
IV
I
III
C)
Stems with bicollateral vascular bundles
iii)
Arillate
3)
IV
I
V
II
D)
Ovary with superficial placentation
iv)
Supressed endosperm growth
4)
IV
V
I
III


v)
Caruncle






9.      Study the following table and choose the correct combination

Plant
Character I
Character II
I)
Dolichos
Pollen prepotency
Exalbuminous seeds
Ii)
Cocos
Dicliny
Arillate seeds
Iii)
Piper nigrum
Perispermic
Endospermic
iv)
Podostemon
Double fertilization
Perispermic
1) I and II                               2) II and III                                3) III and IV                              *4) I and III
10.    [A]: Double fertilization was first discovered by Nawaschin
[R]: Nawaschin first observed the formation of diploid zygote due to Amphimixis
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
*3) A is true but R is false  4) A is false but R is true
11.    The third integument of the seed is formed from
1) outer integument of ovule                                              2) Inner integument of ovule                 
3) Between outer and inner integuments of ovule         *4) Funiculus
12.    Mace is morphologically
1) Outgrowth of outer integument                                      2) Outgrowth of Nucellar beak              
*3) Integumentary outgrowth of Micropylar region         4) Outgrowth of Funiculus   
13.    [A]: Seeds of Capsella are non-endospermic
[R]: It shows Syngamy and Triple fusion
1) Both A and R are true and R is the correct explanation of A
*2) Both A and R are true but R is not the correct explanation of A
3) A is true but R is false    4) A is false but R is true
14.    Soil water is not absorbed for seed germination in
1) Allium                               *2) Rhizophora                       3) Pisum                                   4) Cocos
15.    Arrange the following structures of Embryo of Maize seed in a sequence from one end other end with respect to their place or point of attachment on the Tigellum.
I. Coleoptyle                         II. Plumule                               III. Mesocotyl                           IV. Coleorhiza                 
V. Radicle                             IV. Scutellum
1) I, III, II, V, IV, VI                 *2) V, IV, VI, III, I, II                  3) II, I, IV, III, VI, V                    4) V, IV, III, VI, I, II
16.    Study the following table and choose the correct combination

Plant
Seed nature
Seed germination
I)
Pisum
Exalbuminous
Hypogeal
Ii)
Cucurbita
Albuminous
Epigeal
Iii)
Zea
Albuminous
Hypogeal
iv)
Dolichos
Exalbuminous
Hypogeal
1) I and II                               *2) III and I                               3) II and III                                4) I and IV
17.    Choose the correct statement
1) In all ovules the male gametophyte enters into the female gametophyte through posterior side       
2) In all ovules, the male gametophyte enters into the ovule through anterior side 
3) In few ovules, the pollen tube enters into the embryosac through lateral side.     
*4) Chalazogamy and mesogamy are not seen in Gymnosperms.
18.    Pollen tubes are less longer than the ovules in
1) Ottelia                               2) Glycine                                *3) Gnetum                              4) Gossypium
19.    The term ‘seedling’ is applicable to
1) Embryo in the seed                                                         2) Self sufficient young seed plant      
*3) Juvenile plant of spermatophytes which is still dependent on food reserves of the seed for its growth.
4) Complete vegetative stage of a typical angiosperm.
20.    Shield like structure of monocot embryo is
1) Coleoptile                        2) Coleorhiza                          *3) Scutellum                          4) Mesocotyle
21.    The ratio between the number of maternal nuclei to paternal nuclei involved in double fertilization is
*1) 3 : 2                                 2) 2 : 3                                      3) 2 : 1                                      4) 1 : 2
22.    Nucellus can nourish
I. Megaspore mother cell II. Embryosac                          III. Endosperm                        IV. Seedling
1) All except IV                    2) I and II                                  3) only I                                    *4) All
23.    The region of tigellum present between the coleoptyle and cotyledons is called as
1) Plumule                           2) Hypocotyl                            *3) Mesocotyl                          4) Radicle
24.    Match the following

Economically useful part

Plant


A
B
C
D
A)
Aril
i)
Coffee
1)
II
IV
I
III
B)
Endosperm
ii)
Myristica
*2)
II
V
I
III
C)
Perisperm
iii)
Cicer
3)
III
IV
II
V
D)
Cotyledons
iv)
Citrus
4)
II
III
I
V


v)
Oryza






25.    [A]: Caruncle is anterior in position in a seed
[R]: It is developed from micropyle
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
*3) A is true but R is false  4) A is false but R is true
26.    During epigeal germination, there is more elongation of
1) Epicotyle                          2) Mesocotyl                           3) Plumule                               *4) Hypocotyle
27.    Arrange the following of transverse section of Myristica seed in centripetal manner.
I. Post fertilized structure formed from inner integument                                                  II. Third integument
III. Endosperm                                                                                                                          IV. Testa
*1) II, IV, I, III                         2) II, I, IV, III                              3) IV, I, II, III                              4) IV, II, I, III
28.    [A]: Vegetative fertilization takes place earlier to zygotic fertilisation
[R]: Male gamete of pollen tube establishes first contact with polar nuclei but not egg cell
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
*3) A is true but R is false  4) A is false but R is true
29.    Arrange the following in correct sequence of their emergence from seed during germination of paddy grain
I. Coleoptyle                         II. Coleorhiza                          III. Radicle                                IV. Plumule
1) II, I, III, IV                           2) III, II, I, IV                              3) II, III, IV, I                              *4) II, III, I, IV
30.    Hypocotyle does not remain remain in the soil during seed germination of
I. Maize                                 II. Pisum                                   III. Cucurbita                            IV. Dolichos
1) I and II                               *2) III and IV                            3) I and III                                 4) II and IV
31.    [A]: Endosperm is not formed in Orchidaceae
[R]: Triple fusion is absent in orchids.
*1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true but R is not the correct explanation of A
3) A is true but R is false    4) A is false but R is true
32.    Modified roots seen in hydrophyte that has no development of endosperm is
1) Balancing roots              2) Respiratory roots               *3) Photosynthetic roots        4) Floating roots

1
4
2
2
3
3
4
3
5
2
6
4
7
4
8
1
9
4
10
3
11
4
12
3
13
2
14
2
15
2
16
2
17
4
18
3
19
3
20
3
21
1
22
4
23
3
24
2
25
3
26
4
27
1
28
3
29
4
30
2
31
1
32
3

















No comments: