1. The outermost whorl of a flower is
A) Corolla
B) Androecium
C) Calyx
D) Gynoecium
Ans: C
2. In anther, pollen grains are formed inside
A) Connective
B) Tapetum
C) Microsporangium
D) Endothecium
Ans: C
3. The nutritive layer of anther wall is
A) Epidermis
B) Endothecium
C) Middle layers
D) Tapetum
Ans: D
4. Functional megaspore in most angiosperms is
A) First
B) Second
C) Third
D) Chalazal one
Ans: D
5. Typical angiosperm embryo sac is
A) 7-celled, 8-nucleate
B) 8-celled, 7-nucleate
C) 7-celled, 7-nucleate
D) 8-celled, 8-nucleate
Ans: A
6. The synergids have
A) Filiform apparatus
B) Germ pore
C) Micropyle
D) Antipodals
Ans: A
7. Double fertilization was discovered by
A) Robert Brown
B) S. G. Nawaschin
C) Gregor Mendel
D) Louis Pasteur
Ans: B
8. Pollen tube enters ovule through micropyle in
A) Porogamy
B) Chalazogamy
C) Mesogamy
D) Apogamy
Ans: A
9. Fusion of male gamete with secondary nucleus is called
A) Syngamy
B) Triple fusion
C) Double fertilization
D) Apomixis
Ans: B
10. Endosperm in angiosperms is generally
A) Haploid
B) Diploid
C) Triploid
D) Tetraploid
Ans: C
11. The edible part of coconut is
A) Pericarp
B) Endosperm
C) Cotyledon
D) Testa
Ans: B
12. Cleistogamous flowers ensure
A) Cross pollination
B) Self pollination
C) No pollination
D) Wind pollination
Ans: B
13. Pollen viability in cereals is about
A) 1 month
B) 1 week
C) 30 minutes
D) 24 hours
Ans: C
14. The first cell of male gametophyte is
A) Microspore
B) Pollen grain
C) Vegetative cell
D) Generative cell
Ans: A
15. Structure connecting stigma and ovary is
A) Anther
B) Filament
C) Style
D) Placenta
Ans: C
16. The ovule is attached to placenta by
A) Funiculus
B) Micropyle
C) Chalaza
D) Hilum
Ans: A
17. Number of nuclei involved in triple fusion
A) 2
B) 3
C) 4
D) 5
Ans: B
18. Pollen grains are preserved in
A) Liquid nitrogen (-196°C)
B) 0°C
C) 4°C
D) 100°C
Ans: A
19. The hard outer layer of pollen grain is
A) Intine
B) Exine
C) Sporopollenin
D) Tapetum
Ans: B
20. Sporopollenin is absent in
A) Germ pore
B) Exine
C) Intine
D) Tapetum
Ans: A
21. Pollination by water is called
A) Anemophily
B) Entomophily
C) Hydrophily
D) Zoophily
Ans: C
22. Autogamy requires
A) Unisexual flower
B) Bisexual flower
C) Dioecious plant
D) Wind
Ans: B
23. Polyembryony is seen in
A) Citrus
B) Wheat
C) Pea
D) Mustard
Ans: A
24. Development of embryo from synergid is
A) Apomixis
B) Parthenogenesis
C) Apogamy
D) Polyembryony
Ans: C
25. Pollen-pistil interaction determines
A) Fertilization
B) Incompatibility
C) Germination
D) Seed formation
Ans: B
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