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Sexual Reproduction In Flowering Plants

307 Questions Start Errorless Test
All Exams Allen Errorless
Q251 Errorless 1. Microsporogenesis MCQ
In given figure A and B are respectively [NCERT]
A.
Epicarp and endocarp
B.
Epidermis and endodermis
C.
Intine, exine
D.
Exine, intine
Q252 Errorless 1. Microsporogenesis MCQ
Identify A, B, C and D in given figure
A.
Anther Filament Pollen sac Pollen grains
B.
Anther Pedicel Megasporangium Pollen grains
C.
Anther Petiole Megasporangium Pollen grains
D.
Anther Petiole Pollen sac Magaspore
Q253 Errorless 2. Megasporogenesis MCQ
The hilum is a scar on the [AIPMT (Cancelled) 201!
A.
Fruit, where it was attached to pedicel
B.
Fruit, where style was present
C.
Seed, where micropyle was present
D.
Seed, where funicle was attached
Q254 Errorless 2. Megasporogenesis MCQ
Choose the right option in which all the alphabets A, B, C, D and E are correctly identified
A.
A-Antipodal cells, B-Secondary nuclei, C-Chalaza, D-Stigma, E-Style
B.
A-Antipodal cells, B-Secondary nuclei, C-Stigma, D-Chalaza, E-Style
C.
A-Antipodal cells, B-Secondary nuclei, C-Style, D-Stigma, E-Chalaza
D.
A-Antipodal cells, B-Secondary nuclei, C-Stigma, D-Style, E-Chalaza
Q255 Errorless 2. Megasporogenesis MCQ
The functional megaspore undergoes
A.
2 meiotic divisions to form mature embryo sac
B.
3 mitotic divisions to form mature embryo sac
C.
2 mitotic divisions to form mature embryo sac
D.
3 meiotic divisions to form mature embryo sac
Q256 Errorless 2. Megasporogenesis MCQ
Examine the figure given below showing entry of pollen tube into embryo sac. Identify A, B, C, D, E and F respectively
A.
A-Obturator, B-Synergid, C-Polar nuclei, D-Male gametes, E-Vegetative nucleus, F-Central cell
B.
A-Egg apparatus, B-Synergid, C-Polar nuclei, D-Male gametes, E-Vegetative nucleus, F-Central cell
C.
A-Filiform apparatus, B-Synergid, C-Polar nuclei, D-Vegetative nucleus, E-Male gametes, F-Central cell
D.
A-Filiform apparatus, B-Synergid, C-Polar nuclei, D-Male gametes, E-Vegetative nucleus, F-Central cell
Q257 Errorless 2. Megasporogenesis MCQ
The given figure shows megasporogenesis and development of typical female gametophyte in angiosperms. Which of the following options is right in which all divisions (D1 to D5) and structure (S) are correctly identified
A.
Dā‚-Meiosis I, Dā‚‚-Meiosis II, Dā‚ƒ-Mitosis, Dā‚„-Mitosis, Dā‚…-Mitosis, S-Embryo
B.
Dā‚-Meiosis I, Dā‚‚-Meiosis II, Dā‚ƒ-Mitosis, Dā‚„-Mitosis, Dā‚…-Mitosis, S-Microgametophyte
C.
Dā‚-Meiosis I, Dā‚‚-Meiosis II, Dā‚ƒ-Mitosis, Dā‚„-Mitosis, Dā‚…-Mitosis, S-Embryo sac
D.
Dā‚-Mitosis, Dā‚‚-Meiosis, Dā‚ƒ-Mitosis, Dā‚„-Mitosis, Dā‚…-Mitosis, S-Embryo sac
Q258 Errorless 2. Megasporogenesis MCQ
In an embryo sac of a typical angiosperm, there are
A.
Egg, synergids and antipodals
B.
Egg, synergids, polar nuclei and antipodals
C.
Egg, synergids, central cell and polar nuclei
D.
Egg, synergids and secondary cell
Q259 Errorless 2. Megasporogenesis MCQ
A diagrammatic view of a typical anatropous ovule is given below. In which of the following option all five parts are correctly identified [NCERT Pg. No. 9]
A.
A-Funicle, B-Micropyle, C-Female gametophyte, D-Embryo sac, E-Chalaza
B.
A-Placenta, B-Micropyle, C-Egg, D-Embryo sac, E-Chalaza
C.
A-Raphe, B-Micropyle, C-Egg, D-Embryo sac, E-Chalaza
D.
A-Funicle, B-Micropyle, C-Nucellus, D-Embryo sac, E-Chalaza
Q260 Errorless 3. Pollination MCQ
Pollination by water is seen in
A.
Nelumbium
B.
Vallisneria
C.
Eichornia
D.
Nymphaea
Q261 Errorless 3. Pollination MCQ
The diagram given below shows the plant of Commelina with two type of flowers (F1 and F2). The flowers are
A.
F1 - Chasmogamous, F2 - Cleistogamous
B.
F1 - Cryptogamous, F2 - Ovulate
C.
F1 - Neutral, F2 - Staminate
D.
F1 - Cleistogamous, F2 - Chasmogamous
Q262 Errorless 3. Pollination Numerical
Which of the following type of gynoecium is associated by wind pollination
Q263 Errorless 3. Pollination MCQ
The given diagram is showing hydrophily of [NCERT Pg. No.14]
A.
Vallisneria
B.
Hydrilla
C.
Zostera
D.
Lotus
Q264 Errorless 3. Pollination MCQ
The below figure shows 2 plants of the same species. Identify the types of pollination indicated as P1, P2 and P3
A.
Autogamy GeitonogamyXenogamy
B.
Geitonogamy Allogamy Autogamy
C.
Allogamy ChasmogamyCleistogamy
D.
Autogamy Xenogamy Geitonogamy
Q265 Errorless 4. Fertilization MCQ
Micropyle of seed facilitate in the entry of [Odisha JEE2009]
A.
Air
B.
Pollen grains
C.
CO{2
D.
Water
Q266 Errorless 4. Fertilization MCQ
The given figure is associated to double fertilization. A, B, C, D, E, F and G are identified respectively
A.
Egg, Polar nuclei, Male gamete, Male gamete, Zygote and Primary endosperm nucleus (PEN)
B.
Egg, Male gamete, Male gamete, Polar nuclei, Primary endosperm nucleus (PEN) and Zygote
C.
Egg, Male gamete, Polar nuclei, Male gamete, Primary endosperm nucleus (PEN) and Zygote
D.
Egg, Polar nuclei, Male gamete, Male gamete, Primary endosperm nucleus (PEN) and Zygote
Q267 Errorless 5. Embryo and endosperm MCQ
The given figure are related to castor seeds. Identify A to D respectively
A.
Seed coat, endosperm cotyledon and caruncle
B.
Seed coat, cotyledon, endosperm and caruncle
C.
Seed coat, endosperm, caruncle and cotyledon
D.
Endosperm, seed coat, cotyledon and caruncle
Q268 Errorless 5. Embryo and endosperm Numerical
Considering the genetic basis of self- incompatibility which of the following options is correct. Male plant is $\mathsf { S } _ { 1 } \mathsf { S } _ { 3 }$ and female plant is $\mathsf { S } _ { 1 } \mathsf { S } _ { 2 }$ [NCERT]
(a)

(c)

(b)

(d)
Q269 Errorless 5. Embryo and endosperm MCQ
Study the given figure of a typical dicot embryo. Select the right option in which all the labelled parts as A, B and C are correctly matched with their respective functions
A.
A-Radicle, root system formation, B-Plumule, shoot system formation, C-Endosperm, food storage
B.
A-Radicle, root system formation, B-Plumule, shoot system formation, C-Cotyledon, food storage
C.
A-Plumule, shoot system formation, B-Radicle, root system formation, C-Cotyledon, food storage
D.
A-Plumule, shoot system formation, B-Radicle, root system formation, C-Hypophysis, formation of radicle
Q270 Errorless 5. Embryo and endosperm MCQ
The given figure refers the self - incompatibility. The genotypes of embryo and endosperms are [NCERT]
A.
$\mathsf { S } _ { 1 } \mathsf { S } _ { 3 } , \mathsf { S } _ { 3 } \mathsf { S } _ { 4 }$ $\mathsf { S } _ { 1 } \mathsf { S } _ { 1 } \mathsf { S } _ { 3 } , \mathsf { S } _ { 4 } \mathsf { S } _ { 4 } \mathsf { S } _ { 3 }$
B.
$\mathsf { S } _ { 1 } \mathsf { S } _ { 1 }$ $\mathsf { S } _ { 1 } \mathsf { S } _ { 3 } \mathsf { S } _ { 4 }$
C.
$\mathsf { S } _ { 1 } \mathsf { S } _ { 3 } , \mathsf { S } _ { 3 } \mathsf { S } _ { 4 }$ $\mathsf { S } _ { 3 } \mathsf { S } _ { 4 } \mathsf { S } _ { 4 }$
D.
$\mathsf { S } _ { 4 } \mathsf { S } _ { 4 }$ $\mathsf { S } _ { 3 } \mathsf { S } _ { 4 } \mathsf { S } _ { 4 } , \mathsf { S } _ { 1 } \mathsf { S } _ { 1 } \mathsf { S } _ { 3 }$
Q271 Errorless 5. Embryo and endosperm MCQ
In the following figure
A.
Ruminate endosperm
B.
Nuclear endosperm
C.
Helobial endosperm
D.
Cellular endosperm
Q272 Errorless 7. NCERT(Exemplar Questions) MCQ
Among the terms listed below, those that of are not technically correct names for a floral whorl are[NCERT]
(i) Androecium
(ii) Carpel
(iii) Corolla
(iv) Sepal
A.
i and iv
B.
iii and iv
C.
ii and iv
D.
i and ii
Q273 Errorless 7. NCERT(Exemplar Questions) MCQ
Embryo sac is to ovule as is to an anther
A.
Stamen
B.
Filament
C.
Pollen grain
D.
Androecium
Q274 Errorless 7. NCERT(Exemplar Questions) MCQ
In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is [NCERT]
A.
Calyx, corolla, androecium and gynoecium
B.
Calyx, corolla, gynoecium and androecium
C.
Gynoecium, androecium, corolla and calyx
D.
Androecium, gynoecium, corolla and calyx
Q275 Errorless 7. NCERT(Exemplar Questions) MCQ
A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is [NCERT Pg. No. 15]
A.
Plant is dioecious and bears only pistillate flowers
B.
Plant is dioecious and bears both pistillate and staminate flowers
1-1Dl--+:-
C.
Plant is monoecious
D.
Plant is dioecious and bears only staminate flowers