Sexual Reproduction In Flowering Plants Questions

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Sexual Reproduction In Flowering Plants Questions

List of sexual reproduction in flowering plants Questions

Question No Questions Class
1 A seed is protected by and 12
2 Placentation in Brassicaceae is
A. Parietal
B. Marginal
c. Axile
D. Basal
12
3 The plant embryo is formed by the
structure
( A cdot A, B )
( B cdot A, D )
( c cdot B, C )
D. ( A, B, E )
E. B, C, D
12
4 A nectar-secreting gland cell
characteristically contains
A. Granular cytoplasm filling the cell and a small nucleus.
B. Granular cytoplasm living a central vacuole and a small nucleus.
C. Granular cytoplasm filling the cell and a large conspicuous nucleus.
D. Vacuolated cytoplasm but with a large nucleus.
12
5 State True or False:
All seeds have two cotyledons.
12
6 Identify the wrong statements regarding post-fertilization development.
A. The ovary wall develops into pericarp
B. The outer integument of ovule develops into tegmen
C. The fusion nucleus (triple nucleus) develops into endosperm.
D. The ovule develops into seed.
E. The ovary develops into fruit
12
7 Identify the given figures ( A, B, C, D ) and
E.
( E )
A. A: Marginal, B: Axile, C: Free central, D: Parietal, E:
Basal
B. A: Marginal, B: Parietal, C: Free central, D: Axile, E: Basal
C . A: Marginal, B: Axile, C: Parietal, D: Free central, E:
Basal
D. A: Marginal, B: Axile, C: Parietal, D: Basal, E: Free central
12
8 Ascending imbricate corolla is found in
A. Pisum
B. Tamarindus
c. Mimosa
D. Datura
12
9 In many cultivated ornamental flowers,
number of petal whorls is higher than the one in wild type. Extra petals are generally modified
A. Sepals
B. Petals
c. stamens
D. Pistils
12
10 Rod-shaped elongated sclereids found in the seed coats of pulses are known as
A. Astrosclereids
B. Macrosclereids
c. Trichosclereids
D. Brachysclereids
12
11 Which of the following is capable of forming either a branch or a flower?
A. Intercalary meristem
B. Axillary budd
c. vegetative bud
D. None of these
12
12 A giant spadix is formed in a species of
A. Colocasia
B. Caladium
c. Amorphophallous
D. Pathos
12
13 Why does the development of endosperm preceeds that of embryo? 12
14 Epigynous and unisexual flowers are found in members of family
A. Caryophyllaceae
B. Campanulaceae
c. Myrtaceae
D. Cucurbitaceae
12
15 The ovary is half inferior in the flowers of
A. Peach
B. Cucumber.
c. cotton
D. Gauva.
12
16 Anthers represent
A. Male gametophytes
B. Male sporophylls
C . Spermatogonia
D. Female gametophytes
12
17 Explain the term perianth. 12
18 Numerous shinning ovules on swollen placentae with axile placentation are found in
A. Lagenaria
B. Lycopersicon
c. Lactuca
D. All of the above
12
19 Corolla with four diagonally arranged petals is
A. Vexillary
B. Cruciform
c. Gamopetalous
D. Caryophyllaceous
12
20 When placenta forms a ridge along the
ventral suture of the ovary and the ovules are borne on this ridge forming two rows, the type of placentation is termed as
A. Marginal
в. Axile
c. Parietal
D. Free centra
12
21 Persistent calyx forming a cover around the fruit is found in
A. Argemone mexicana
B. Ageratum conyzoides
c. Withania somnifera
D. Brassica campestriss
12
22 A flower characterised by
monoadelphous tubular stamens belongs to
A. Solanaceae
B. Liliaceae
c. Malvaceae
D. Brassicaceae
12
23 Which of the following structure
produces aggregate fruit?
A. VII
B. I and ( vee ) I
c. ॥, ॥ा, ।V, and v
D. II, V, and VI
E. III and VI
12
24 A flower which can be divided into two
equal halves by only one plane is
A. zygomorphic
B. Actinomorphic
c. Regular
D. Perfect
12
25 The expression gynoecium is
apocarpous implies that the
A. Gynoecium comprises only one pistil which is fused with the stamen
B. Gynoecium comprises more than one carpel, all of which are free
C. Gynoecium comprises only one carpel which is free
D. Gynoecium comprises more than one carpel which are fused
12
26 Ascending imbricate corolla is found in
A. Pisum
B. Tamarindus
c. Mimosa
D. Datura
12
27 Gynobasic style can be traced in
A. Mangifera
B. Tagets
c. Ocimum
D. All of the above
12
28 Flower of Hibiscus is
A. Actinomorphic and epigynous
B. Actinomorphic and hypogynous
c. zygomorphic and hypogynous
D. Zygomorphic and epigynous
12
29 Name the four stages of life span. 12
30 39. Flowers emit fragrance to:
(1) purify air
(2) drive away flies
(3) attract insects
(4) perform all the above
12
31 Which one of the following statements
is correct?
A. Flower of tulip is a modified shoot
B. In a tomato, fruit is a capsule
c. Seeds of orchids have oil-rich endosperms
D. Placentation in primrose basal
12
32 Seed develops from
A. Embryo
B. Ovule
c. Embryo sac
D. Ovary
12
33 How many meiotic divisions are required for the formation of 50
zygotes?
A. 62
B. 63
( c cdot 61 )
D. 50
12
34 Papilionaceous flower with large vexillum covering two wings and the wings covering the keel has corolla
aestivation of
A. Descending imbricate
B. Ascending imbricate
c. Twisted
D. valvate
12
35 Non-functional stamens are called
A. Assessory stamens
B. Staminodes
c. supplementary stamens
D. Staminates
12
36 Pappus is modification of
A. Bracts
B. corolla
c. calyx
D. All of the above
12
37 The placentation in a multilocular ovary
where the ovules are borne over the
entire inner surface is called as
A. Pendulous
B. Marginal
c. superficial
D. Parietal
12
38 Compound apocarpous gynoecium is found in
A . Lily
B. Hollyhock
c. Lotus or Ranunculus
D. Pumpkin
12
39 In angiosperms, triple fusion produces
A. Polar nucleus
B. Secondary nucleus
c. Primary endospermic nucleus
D. Zygotic nucleus
12
40 To which of the following flowers ‘synandrous’ condition is found?
A. Sunflower (Helianthus sp.)
B. Gourd (cucurbita sp.)
c. Pea (Pisum sativum)
D. Lemon (Citrus sp.)
12
41 Which is the vital link that ensures
continuity of species between organisms of one generation and the next?
A. Sexual reproduction
B. Embryo
c. zygote
D. Fertilisation
12
42 Filament attached along the whole
length of anther is the condition called
A. Adnate
B. Dorsifixed
c. Basifixed
D. Versatile
12
43 Seed develops from 12
44 The characteristic inflorescence of
family Cruciferae is
A. Umbel
B. Racemose
c. cymose
D. catkin
12
45 The small projections present on the surface of pineapple fruit represent
A. Persistent styles
B. Persistent stamens
c. Persistent calyx
D. Persistent bracts
12
46 Ligulate corolla is found in
A. Sunflower
B. Delphinium
( c . ) Pea
D. cucurbita
12
47 The correct floral formula of chilli is
( A )
[
oplus bigoplus_{2+2} C_{4} A_{2+4} C_{(2)}
]
B. ( B r . %, K_{4} C_{4} ) Аа ( G_{1} )
( c )
[
bigoplus bigoplus_{(5)} A_{(5)} G_{(2)}
]
( D )
[
bigoplus bigoplus_{3+3} A_{3+3} G_{(3)}
]
12
48 Name the parts of the ovary which give
rise to:
Seed
12
49 What happens to the following after
fertilization?
Petals
12
50 In scapigerous umbel, the flowers are arranged in manner
A. Corymb
B. Umbel
c. Panicle
D. Monochasial cyme
12
51 How many plants in the given list have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar Sunn Hemp, Chilli, Colchicum, Onion,
Moong, Tobacco, Lupin.
A. Four
B. Five
( c . ) six
D. Three
12
52 The botanical term used for the
androecium in a flower of China rose
(Hibiscus rosa sinensis) is
A. Polyadelphous
B. Monadelphous
c. Diadelphous
D. Polyandrous
12
53 Describe the post-fertilization changes
in a flower.
12
54 Phytochrome is found in
A. Fungi
B. Algae
c. Pteridophytes
D. Angiosperms
12
55 Which of the following is present in monocot flowers?
A. Sepals
B. Petals
c. Tepals
D. None of the above
12
56 Obdiplostemonous condition is that in which the stamens are in two whorls
and
A. Outer whorl is fused to inner whorl.
B. Outer whorl is opposite to petals.
c. Inner whorl is opposite to petals.
D. Both, inner as well as outer whorls are opposite to petals
12
57 Shoe flower belongs to
A. Solanaceae
B. Malvaceae
c. Papillonaceae
D. Liliaceae
12
58 The perianth term used when
A. Androecium and gynoecium are similar
B. Calyx and corolla are similar
C. Androecium and calyx are similar
D. Corolla and gynoecium are similar
12
59 The long stalk in the stamen is called
A. Pollen tube
B. Anther
c. style
D. Filament
12
60 Mention the post fertilisation changes
that occur in a flower.
12
61 develops into embryo
A. Micropyle
B. Chalaza
c. zygote
D. Pollen grain
12
62 Cucurbits and papaya plants bear staminate and pistillate flowers.
Mention the categories they are put
under separately on the basis of the type of flowers they bear.
12
63 Staminal tube is found in
A. Nicotiana
B. Asparagus
c. Hibiscus
D. Pea
12
64 Versatile anthers occur in
A. Helianthus annuus
B. Oryza sativa
c. solanum tuberosum
D. Hibiscus esculentus
12
65 Plants that produce sexually do not produce flower.
A. True
B. False
12
66 Cruciform corolla is found in
A. Pisum
B. Radish
c. China Rose
D. Sunflower
12
67 Basal placentation occurs in
A. Poaceae
B. Solanaceae
c. Malvaceae
D. Liliaceae
12
68 Actinomorphic flower is found in family
A. Cannaceae
B. Poaceae
C. Papilionaceae
D. Solanaceae
12
69 Which of the following can be related to china rose?
A. Anthers are fused
B. Filaments are fused in a single mass
C. Filaments are fused to form many groups
D. All the stamens are free
12
70 Which part of the flower forms the fruit?
A. Whole flower
B. Only stamens and carpel
c. Only ovary
D. only carpel
12
71 What happens to the following after
fertilization?
Ovules
12
72 All floral leaves are placed on the
of flower.
A. Thalamus
B. Petal
c. Sepal
D. Ovule
12
73 The ovary ripens to form fruit.
A. True
B. False
12
74 In the plant part having two generations
is
A. embryo
B. unfertilized ovule
c. germinated pollen grain
D. seed
12
75 Match the following and choose the
correct combination from the options
given below.
begin{tabular}{lll|l}
& Column I & & Column II \
& (Placentation Types) & & (Represented in ) \
hline ( mathrm{A} ) & Basal & 1 & Dianthus \
hline ( mathrm{B} ) & Free central & 2 & Pea \
( mathrm{C} ) & Parietal & 3 & Lemon \
( mathrm{D} ) & Axile & 4 & Marigold \
( mathrm{E} ) & Marginal & 5 & Argemone
end{tabular}
( mathbf{A} )
( A-1, B-2, C-3, D-4, E-5 )
B. A- 2, B-3, C- 4, D-5, E-1
C. ( A-4, B-1, C-5, D-3, E-2 )
D. ( A-4, B-3, C-5, D-1, E-2 )
E. ( A-5, B-4, C-3, D-2, E- )
12
76 When calyx and corolla are not
distinguishable, then member of their collective whorl termed as
A. Perianth
B. Sepal
c. Petal
D. Tepal
12
77 The zigzag development of axis is an example of
A. Umbel
B. Nelicoid cyme
c. scorpioid cyme
D. Verticillaster
12
78 Trimerous condition of floral whorls is
characteristic of
12
79 Ascending imbricate corolla is found in
A. Pisum or Papilionadae
B. Tamarindus or Caesalpinioideae
c. Mimosa or Mimosoideae
D. Datura or Solanaceae
12
80 Conifers differ from grasses in the
A. Absence of pollen tubes
B. Formation of endosperm before fertilization
c. Production of seeds from ovules
D. Lack of xylem tracheids
12
81 Part of pistil which receives pollen is
A. Ovary
B. Style
c. stigma
D. Ovule
12
82 A distinct monocot character shown by the flowers of Liliaceae is
A. Hypogynous flowers
B. Actinomorphic flowers
c. Trimerous flowers
D. Bisexual flowers
12
83 Placentation in Brassicaceae is
A. Parietal
B. Marginal
c. Axile
D. Basal
12
84 What are petals? Why are they generally coloured? 12
85 Beaked, syngenesious anthers and epipetalous stamens are found in
A . Liliaceae
B. Solanaceae
c. compositae
D. Malvaceae
12
86 Both a short day plant and a long day
plant can produce flower
simultaneously in a given place. Explain.
12
87 Which of these is an example for zygomorphic flower with imbricate aestivation?
A. Calotropis
B. Mustard
c. canna
D. cassia
E. Cucumber
12
88 What is a flower? Describe the parts of a
typical angiosperm flower
12
89 Identify the wrong pair of statements.
I) The number of stamens in 5 flowers of
Allium is equal to those in 5 flowers of Solanum.
Il) The microsporangia of Hibiscus and Asparagus are having 80 pollen grains each. Then the ratio of the number of
pollen grains produced from each stamen of these two plants is 1: 1
III) The ratio of the number of stamens
in the flowers of Pisum and Datura is 2: 1
IV) The number of carpels in a flower of Smilax is equal to the number of carpels in a cyathium inflorescence.
A. ॥I, IV
B . ।, ॥
( c cdot 1,1 )
D. II, III
12
90 Which one of the following statement is not applicable to Solanaceae?
A. Adnation
B. Swollen axile placentation
c. Bicarpellary superior ovary
D. Monocarpellary superior ovary
12
91 Vexillary aestivation is characteristic of
A. Mimosoideae
B. Caesalpinoideae
c. Papilionaceae
D. All of the above
12
92 Individual components of corolla are called
A. Sepals
B. Petals
c. Tepals
D. Bracts
12
93 What is the major edible part of a brinjal (egg plant)? This question has multiple correct options
A. Pericarp
B. Thalamus
c. Placenta
D. style
12
94 What happens to the following after
fertilization?
Calyx
12
95 Study the following lists
begin{tabular}{l|l|l}
List I & List II \
A) & Early seed production in conifers & I) & Indole substance \
hline B) & Seed development and maturation & II) & Terpene substance \
C) & Lateral shoot growth & III) & Volatile substance \
D) & Root hair formation & IV) & Adenine derivative \
hline
end{tabular}
( mathbf{A} )
( A-| I, B-I, C-V, D-I )
B. ( A-11, B-V, C-I V, D-1 )
C. ( A-11, B-1, C-V, D-I V )
D. ( A-I V, B-11 I, C-11, D- )
12
96 Stamens attached to petals are
A. Epipetalous
B. Epiphyllous
c. Episepalous
D. All of the above
12
97 Cruciform corolla is found in
A. Sunflower
B. China-rose
c. Radish
D. Pea
12
98 Observe the diagram given below. What
happens after the above stage?
A. The ovary splits open.
B. Ovary develops into a fruit and ovules into seeds.
c. The ovules are dispersed
D. Germination of seeds takes place
12
99 Which is the sequence of four whorls of
flower from outside to inside?
A. Calyx ( rightarrow ) Corolla ( rightarrow ) Androceium ( rightarrow ) Gynoceium
B. Gynoceium ( rightarrow ) Androceium ( rightarrow ) Corolla ( rightarrow ) Calyx
C . Calyx ( rightarrow ) Androceium ( rightarrow ) Corolla ( rightarrow ) Gynoceium
D. Gynoceium ( rightarrow ) Corolla ( rightarrow ) Androceium ( rightarrow ) Calyx
12
100 In Zea mays the flowers are
A. In form of condensed inflorescence
B. Unisexual on different plants
C. Diclinous on the same plant
D. Hermaphrodite
12
101 Define zygote. 12
102 In a syncarpous unilocular ovary, ovules develop from two opposite lines on the wall. The placentation is
A. Superficial
B. Marginal
c. Axile
D. Parietal
12
103 In gymnosperms, the pollination is
A. Anemophilous – micropylar
B. Anemophilous – stigmatic
C. Entomophilous – micropylar
D. Entomophilous – stigmatic
12
104 Vexillary aestivation is found in
A . Rosaceae
B. Cruciferae
c. Cucurbitaceae
D. Papilionaceae
12
105 Claw is found in the petals of
A . Cruciferae
B. Fabaceae
c. Liliaceae
D. Solanaceae
12
106 Cruciferae belongs to
A. Parietales
B. Bicarpellatae
C. Gamopetalae
D. Calyciflorae
12
107 The structures that develops into the fruit once fertilization has occurred is
A. Integument
B. cotyledon
c. Ovule
D. Ovary
E. Endosperm
12
108 Which statement is correct for
compositae?
A. 5-lobed stamens
B. Syngenesious stamens
c. Basal ovule
D. Ligulate ray florets
12
109 Coloured attractive structures of flower
Bougainvillea are the
A. Calyx
B. Petaloid bracts
c. Foliage leaves
D. Epicalyx
12
110 Seed of black pepper is
A. Endospermic
B. Exalbuminous
c. Acotyledonous
D. Perispermic
12
111 The structures develops into the seed once fertilization has occurred is
A. Integument
B. cotyledon
c. Ovule
D. Ovary
E. Endosperm
12
112 The ovary of a flower grows into a fruit.
A. True
B. False
12
113 Multiple spathes around a spadix are
found in
A. Plantain
B. Maize
c. Lily
D. Ginger
12
114 A plant with both male and female
flowers borne over it is
A. Monoecious
B. Dioecious
c. Unisexual
D. Bisexual
12
115 In coconut, black covering (thin layer) adherent to the kernel around the
endosperm is
A. Mesocarp
B. Pericarp
c. Seed coat
D. None of the above
12
116 What are monocarpic and polycarpic plants? 12
117 What is that condition when
androecium consists of 4 long and 2
short stamens?
A. Didynamous
B. Tetradynamous
c. Diplostemonous
D. None of the above
12
118 After culturing the anther of a plant, a few diploid plants were got along with haploid plants. Which of the following parts might have given rise to diploid plants?
A. Vegetative cell of pollen
B. Cells of anther wall
c. Generative cell of pollen
D. Intine of pollen wall
12
119 What are the characteristics
associated with the flower?
A. Green leaves
B. Colourful petals
c. Green sepals
D. Both B and C
12
120 Assertion
The zygote developed from sexual reproduction is diploid.
Reason
In sexual reproduction, haploid
gametes fuse and form zygote.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
121 The placentation in a multilocular ovary
with ovules borne over the entire inner
surface is called as
A . Basal
B. Marginal
c. superficial
D. Free central
12
122 In flowering plants, the fruit is derived
from
( A )
( mathrm{B} )
( c )
( D )
( E )
12
123 The inflorescences with indeterminate
growth of axis are found in
A. Raceme and cyathium
B. Umbel and verticillaster
c. capitulum and cnrymb
D. Cyathium and cymose
12
124 Describe the various modes of fixation
of anther over filament.
12
125 Male part of a flower is called
A. Stamen
B. stigma
( c . ) Egg
D. Pollen tube
12
126 (unisexual, fertilisation, fruit, stamen,
anther, bisexual, pollination, seed,
ovary The ovary of the flower develops into
( mathbf{a} )
12
127 The stamens are united in two bundles
in flowers of
A . Pea
B. China rose
c. Sesbania
D. Both (1) & (3)
12
128 The term ‘keel’ is used for special type
of
A. Sepals
B. Petals
c. stamens
D. carpels
12
129 The fusion of gametes is called as
A. Embryo
B. Zygote
c. Ovum
D. Pollen grain
12
130 Arrangement of sepals and petals with respect to each other in flower bud is
A. Aestivation
B. Phyllotaxy
c. Vernation
D. Venation
12
131 Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).
(a) Ovary
(b) Anther
(c) Egg
(d) Pollen
(e) Male gamete
(f) Zygote
12
132 Which is haploid in Gymnosperm?
A. Root, shoot, endosperm
B. Endosperm, pollen grain, megaspore
C. Root, leaf, bud
D. Bulbil, buds, microspore
12
133 Clove is a/an
A. Flower budd
B. Axillary bud
c. Thalamus
D. Ovule
12
134 In unilocular ovary the ovules develop on the inner wall of ovary. Placentation
can be
A . Basal
B. Axile
c. Parietal
D. Free central
12
135 Flower is a modified shoot as
A. Thalamus may elongate to show internodes.
B. There is aggregation into inflorescence.
C . It bears essential organs.
D. It may have epicalyx.
12
136 Placenta of a flower is a tissue that
A. Forms pollen grains
B. Attaches stamens with corolla/ sepals/ tepals
c. Bears ovule
D. Bears corolla
12
137 Write the male part of flower. 12
138 flowers has trimerous
symmetry
A. Wheat
B. Maize
c. Both A and B
D. None of the above
12
139 The monocotyledonous seed consists of one large and shield shaped cotyledon known as
A. Aleurone layer
B. Scutellum
c. coleoptile
D. Hilum
E. Coleorhiza
12
140 In a monoadelphous condition, stamens
have
A. Filaments of all united in one group but anthers are free
B. Filaments united in groups and anthers are absent.
C. Anthers are fused but filaments are free.
D. Both, anthers and filaments are fused.
12
141 Subfamilies of Leguminosae family are differentiated on the basis of
A. Gynoecium
B. Corolla and androeium
c. Nature of plant
D. Nature of fruit
12
142 Define the term placentation. 12
143 A family which was named after its
inflorescence is
A. Poaceae (graminae)
B. Malvaceae
c. Apiaceae (Umbelliferae)
D. Moraceae
12
144 Endosperm of flowering plants develops
from
A. Haploid nucleus
B. Diploid nucleus
c. Triploid nucleus
D. Tetraploid nucleus
E. Polyploid nucleus
12
145 Nude flower means
A. Absence of androecium
B. Absence of gynoecium
C. Absence of calyx and corolla
D. Both (A) and (B)
12
146 If in an inflorescence two lateral
branches develop on either side of the terminal flower which again branch is
known as
A. Monochasial cyme
B. Scorpiold cyme
C. Helicoid cyme
D. Dichasial cyme
12
147 Endosperm of gymnosperms is
A. Haploid
B. Tetraploid
c. Diploid
D. None of these
12
148 Which of the following plants in Brassicaceae family have two stamens in flower?
A. Raphanus
B. Nasturtium
c. coronopus
D. Brassica
12
149 Centripetally arranged sessile flowers on a flattened convex axis are found in
A. Hibiscus
B. Helianthus
c. Holoptelea
D. All of the above
12
150 In which type of aestivation the petal arrangement is 2 external, 2 internal
and 1 partly external and partly internal?
A. Twisted
B. Imbricate
c. Quincuncial
D. valvate
12
151 Name the parts of the ovary which give
rise to:
Fruit wall
12
152 The term “Keel” is used for special type
of
A. Sepals
B. Petals
c. stamens
D. carpels
12
153 In angiosperms, normally after
fertilisation.
A. The zygote divides earlier than the primary endosperm nucleus
B. The primary endosperm nucleus divides earlier than the zygote
C. Both the zygote and primary endosperm nuclei divide simultaneously
D. Both the zygote and primary endosperm nuclei undergo a resting period
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154 Stamens attached to petals are
A. Antipetalous
B. Epipetalous
c. Epiphyllous
D. Episepalous
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155 The essential organs of the flower are
A. Calyx and Corolla
B. Androecium and Gynoecium
c. calyx and Androecium
D. Corolla and Gynoecium
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156 In family Papilionaceae, 5 petals form a unique association, in which 3 different elements participate, these are vexillum, alae and carina.What is the number of these elements?
A. 1,2,2 respectively
B. 2, 1, 2 respectively
c. 1,1,3 respectively
D. 2, 2, 1 respectively
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157 Ligulate/strap-shaped corolla occurs in sunflower in
A. Disc florets
B. Immature florets
c. Ray florets
D. Both ray and disc florets
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158 Arrangement of ovules on the placentae developed from central axis of ovary is
A. Parietal placentation
B. Basal placentation
c. Marginal placentation
D. Axile placentation
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159 Arrangement of sepals and petals in the bud condition is called as
A. Ptyxis
B. Placentation
c. Aestivation
D. Phyllotaxy
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160 The evolutionary most advanced
inflorescence is found in
A . Dahlia
B. Salvia
c. calotropis
D. Yucca
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161 In an angiospermic plant, endosperm is formed due to fertilization of secondary nucleus but it is absent in some of the
seeds viz. pea, bean, phaseolus (moong) etc. It is due to lack of
A. Certain enzymes
B. Dicotyledonous hormone
c. Growth hormone
D. None of the above
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162 Replum is present in the ovary of flower of
A. Sun flower
B. Pea
c. Lemon
D. Mustard
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163 Which of the following situations
correctly describes the similarity between an angiosperm egg and a human egg?
(i) Eggs of both are formed only once in
a lifetime.
(ii) Both the angiosperm egg and human egg are stationary.
(iii) Both the angiosperm egg and human egg are motile transported.
(iv) Syngamy in both results in the formation of zygote.

Choose the correct answer from the
options given below.
( A cdot ) (ii) and (iv)
B. (iv) only
c. (iii) and (iv)
D. (i) and (iv)

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164 Flowers which have only stamens are
called as
A. Male flowers
B. Staminate flowers
c. Both of (A) and (B)
D. Pistillate flowers
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