Friday, March 15, 2013

Suspensor is a component of


1.Tapetum is present between
(A) Epidermis and endothecium
(B) Endothecium and middle layers
(C) Epidermis and middle layers
(D) Middle layers and sporoangenous tissue
Answer: (D)

2.Monocot pollengrains are generally
(A) Monocoplate
(B) Bicolpate
(C) Tricolpate
(D) Multicolpate
Answer: (A)

3.Exine of pollen-grain is made up of
(A) Sporopollenin
(B) Cellulo-pectin
(C) Callose
(D) Cellulose
Answer: (A)

4.Ovule is
(A) Megasporangium
(B) Microsporangium
(C) Integumented megasporangium
(D) Megaspore
Answer: (C)

5.The tenuinucellate ovule has
(A) Small amount of nucellus
(B) Large amount of nucellus
(C) Chalazal nucellus
(D) MIcropyle nucllus
Answer: (A)

6.The point at which funicle is attached to body of ovule
(A) Raphe
(B) Hilum
(C) Endothelium
(D) Chalaza
Answer: (B)

7.A typical angiospermic embryo sac is susally
(A) One celled
(B) Two celled
(C) Three celled
(D) Seven celled
Answer: (D)

8.Continued self poll ination results in
(A) Better progeny
(B) Weak progeny
(C) New varieties
(D) Both (A) and (C)
Answer: (B)

9.Cleistogamous flowers are always
(A) Insect pollinated
(B) Wind pollinated
(C) Cross pollinated
(D)    Self pollinated
Answer: (D)

10.In angiosperms pollination is always
(A) Direct
(B) Indirect
(C) Both A and B
(D) None of these
Answer: (B)

11.Entomopjilous flowers are with
(A) Dry and smooth pollen
(B) Sticky and rough pollen
(C) Less numbers of pollens
(D) Brightly coloured pollens
Answer: (B)

12.Flowers are small and unattractive in
(A) Entomophily
(B) Ornithophily
(C) Anemophily
(D) All of these
Answer: (C)

13.When birds are agents, the pollination is
(A) Anemophily
(B) Entomophily
(C) Ornithophily
(D) Hydrophily
Answer: (C)

14.Syngamy refers to
(A) Fusion of one of the sperm with synergid
(B) Fusion of one male gamete with female gamete
(C) Fusion of male gamete with secondary nucleus
(D) Fusion of one male gamete with egg and other male gamete with secondary nucleus
Answer: (B)

15.Endosperm is generally
(A) Haploid
(B) Diploid
(C) Triploid
(D) Polyploid
Answer: (C)

16.Free nuclear divisions occurs in
(A) Cellular endosperm
(B) Nuclear endosperm
(C) Helobial endosperm
(D) Both (B) and (C)
Answer: (D)

17.Suspensor formed during development of dicot embryo is
(A) 2-3 celled
(B) 3-4 celled
(C) 5-6 celled
(D) 6-10 celled
Answer: (D)

18.The first cell of suspensor towards micropyle which absorbs food material is
(A) Hypophysis
(B) Haustoria
(C) Radicle
(D) Transverse cell
Answer: (B)

19.Helobial type of endosperm is seen in
(A) Asphodelus
(B) Common in order Helobiales
(C) Petunia
(D) Both (A) and (B)
Answer: (D)

20.In monocot seeds, radicle is covered by a protective covering called
(A) Coleoptile
(B) Coleorrhiza
(C) Scutellum
(D) Aleurone layer
Answer: (B)

21.Embryo axis is also called as
(A) Tegman
(B) Tiller
(C) Tigellum
(D) Scutellum
Answer: (C)

22.The first node indicates point of attachment of  ----- to embryo axis
(A) Plumule
(B) Radicle
(C) Cotyledons
(D) All of the above
Answer: (C)

23.______ during embryo development push he embryo deeper into the endosperm
(A) Octan
(B) Suspensor
(C) Tegellum
(D) Scutellum
Answer: (B)

24.Suspensor is a component of
(A) Germinating seed
(B) Developing embryo
(C) Mature embryo
(D) Endosperm
Answer: (B)

25.The type of seed in which endosperm is completely utilized by developing embryo
(A) Endospermic seed
(B) Non endospermic sees
(C) Albuminous seed
(D) None of these
Answer: (B)

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