1. Tapetum which develops into ovule is called :
(A) amoeboid tapetum
(B) glandular tapetum
(C) integumentary tapetum
(D) flagellar tapetum
Ans – (C)
2. In angiosperms, all the four microspores of a tetrad are covered by a layer formed of :
(A) cellulose
(B) sporopollenin
(C) pectose
(D) callose
Ans – (D)
3. Male gametophyte of anglosperms / monocots is :
(A) Mierosporangium
(B) Nucellus
(C) Microspore
(D) Stamen
Ans – (C)
4. In flowering plant a mature gametophyte is derived from a pollen mother cell by:
(A) 3 mitosis
(B) 1 meiosis and three mitosis
(C) 1 melosis and two mitosis
(D) singte meiosis
Ans – (C)
5. Chemically pollen kit is made up of :
(A) proteins
(B) lipids and carotenoids
(C) carbohydrates and carotenoids
(D) sporopollenium
Ans – (B)
6. Night blooming flowers are generally
(A) Light weight
(B) Stunted
(C) Brightly coloured
(D) Bloom in clusters
Ans – (B)
7. When a flower is brightly coloured and secretes nectar, if is most probably :
(A) pollinated by wind
(B) pollinated by insects
(C) an insectivorous plants
(D) sterile flower
Ans – (B)
8. Natural parthenogenesis occurs in :
(A) Drosophila
(B) House fly
(C) Honey bee
(D) All
Ans – (C)
9. Anther is related to :
(A) formation of pollen
(B) development of pollen
(C) opening of flower bud
(D) reception of pollen by stigma
Ans – (C)
10. Formation and differentiation of pollen grains in anther is called :
(A) megasporogenesis
(B) microsporogenesis
(C) spermiogenesis
(D) double fertilization
Ans – (B)
11. A dithecous anther contains:
(A) 4 microsporangia
(B) 3 microsporangia
(C) 2 microsporangia
(D) 1 microsporangia
Ans – (A)
12. Meiosis in anther occurs in :
(A) endothecium cells
(B) pollens
(C) tapetal cells
(D) spore mother cells
Ans – (D)
13. Pollen grains are produced in :
(A) anther
(B) stigma
(C) filament
(D) polten sac
Ans – (D)
14. The pollen is :
(A) haploid
(B) dipolid
(C) triploid
(D) tetraploid
Ans – ( A )
15. Sexual of flowering plants reproduction was discovered by :
(A) Camerarius
(B) Nawaschin
(C) Strasburger
(D) Maheswari
Ans – (A)
16. Function of tapetum is
(A) Protective
(B) Nutritive
(C) Respiratory
(D ) All of the above
Ans – (B)
17. Number of chromosomes in root cell is 14. What will be the number in synergids ?
(A) 14
(B) 21
(C) 7
(D) 28
Ans – (C)
18. Proteinaceous endosperm of maize is called
(A) apophysis
(B) scutellum
(C) coleoptile
(D) aleurone layer
Ans – (D)
19. The ovary of a flower is :
(A) haploid
(B) dipolid
(C) triploid
(D) tetraploid
Ans – (B)
20. In angiosperms the fertilization occurs in :
(A) nucellus
(B) embryo sac
(C) ovary
(D) ovule
Ans – (B)
