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Self pollination is transfer of pollen from anther to the stigma of
(1) Same flower
(2) Same or different flower of the same plant
(3) Same or genetically similar flower of the same or other plant
(4) Different flowers of the same plant

A mechanism to prevent cross pollination is
(1) Protogyny                (2) Protandry
(3) Heterostyly              (4) Cleistogamy

Nawaschin (1898) discovered double fertilization. Double fertilisation means the fusion of
(1) Two polar nuclei
(2) One male gamete with egg and the other with synergid
(3) Egg nucleus and two pollen nuclei
(4) One male gamete with the egg and the other with the secondary nucleus

In a mature fertiised ovule, n, 2n and 3n condition are commonly found in
(1) Egg, synergids, antipodals respectively
(2) Egg, synergids, endosperm respectively
(3) Synergid, zygote, primary endosperm nucleus respectively
(4) Endosperm, egg, nucellus respectively

Wind pollinated flowers have
(1) Small petals and sticky pollen
(2) No petals and light pollen
(3) Coloured and large petals with large pollen
(4) Small petals and heavy pollen

Faster and better growth of pollen from other plants than the pollen from the same plant is
(1) Self incompatibility           (2) Dichogamy
(3) Monocliny                        (4) Prepotency

Formation of an extra embryo from the nucellus or integument is called:
(1) Cleavage polyembryony
(2) Suspensor polymebryony
(3) Simple polyembryony
(4) Adventive polymebryony

Wall of a pollen sac consists of
(1) Endothecium and tapetum
(2) Tapetum and middle layers
(3) Endothecium, middle layers and tapletum
(4) Epidermis, endothecium, middle layers and tepetum

What is meant by emasculation?
(1) Pollination between flowers of same plant
(2) Pollination between flowers of different plant
(3) Removal of the anthers
(4) Artifical pollination

In angiosperms each pollen grain produces two sperms. What do these sperms do in the fertilization of a flower?
(1) Each one fertilizes a separate egg cell to give rise to two seeds
(2) One fertilizes an egg cell and the other fertilizes another cell that gives rise to the tissue of the fruit
(3) Both fertilizes a single egg cell
(4) One fertilizes an egg cell and the other fertilizes the cell that forms food reserve tissue

Perisperm is:
(1) outer part of embryo sac
(2) degenerated secondary nucleus
(3) degeneratged synergid
(4) remains of nucellus

The functional megaspore undergoes the following simultaneous divisions to form mature embryosac:
(1) three meiosis          (2) two meiosis
(3) three mitosis           (4) two mitosis

Epiblast present in certain monocot embryo represents:
(1) rudimentary leaves            (2) mesocotyl
(3) scutellum                          (4) second cotyledon

There are at least two families …… where the product of double fertilization soon disintegrates and endosperm development is completely absent:
(1) Orchidaceae and Podostemonaceae
(2) Asteraceae and Fabaceae
(3) Poaceae and Brassiceae
(4) All of the above

Ruminate endosperm is found in:
(1) Brassica        (2) Lathyrus
(3) Myristica        (4) Zea

The haploid number of chromosomes in a species of wheat is 7 and the diploid number is 14. How many chromosomes would you expect to find in cells of the endosperm?
(1) 7            (2) 14
(3) 21           (4) 28

Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube because:
(1) Laser beam stimulate pollen germination and pollen tube growth.
(2) Laser beam does not damage the region from which pollen tube emerges
(3) The contents of the killed generative cell permit germination and pollen growth
(4) The vegetative cell has not been damaged

After penetrating the stigmatic and stylar tissues, the pollen tube usually grows down towards the egg because
(1) The egg cell attracts the pollen tube
(2) The synergids attract the pollen tube
(3) It has no other passage to follow
(4) It grows under the control of egg nucleus

Recent research has shown that pollination requires that carpels recognize pollen grains as "self or nonself." For self-incompatibility, the system requires
(1) the rejection of nonself cells.
(2) the rejection of self cells.
(3) carpel incompatibility with the egg cells.
(4) that the flowers be incomplete.

Which of the following is not associated with pollen pistil interaction ?
(1) Dialogue between pollen and pistil
(2) Interaction between chemical components of pollen and pistil
(3) Pollination by only right type of pollen grain
(4) Wrong type of pollen rejected

Which of the following is not correct for filiform apparatus.
(1) It is a finger like projection present in Synergids.
(2) It guides entry of pollen tube
(3) It increases surface area of absorption
(4) It takes part in double fertilisation

Which of the following statement is correct for flowering
(1) Decision of flowering taken much before the actual flowering
(2) Several hormonal and structural changes are initiated
(3) Differentiation and development of the floral primordium
(4) All of these

Study the figure given below and select the correct options

(1) Hilum, Nucellus, funicle and Embryo sac
(2) Funicle, Hilum, Nucellus and Embryo sac
(3) Funicle, Nucellus, Hilum and Embryo sac
(4) Hilum, funicle, nucellus and Embryo sac.

In geitonogamy, pollen grains are transferred to
(1) Genetically different flower
(2) Genetically similar flower
(3) Stigma of another flower of a different plant
(4) Stigma of the same flower

Egg apparatus is situated at .............. end and is composed of .......... cells.
(1) Micropylar, 2            (2) Chalazal, 3
(3) Micropylar, 3            (4) Chalazal, 2

Egg apparatus is situated at .............. end and is composed of .......... cells.
(1) Micropylar, 2        (2) Chalazal, 3
(3) Micropylar, 3        (4) Chalazal, 2

Entry of pollen tube with two male gametes and tube nucleus through micropile, is
(1) mesogamy          (2) porogamy
(3) chalazogamy       (4) none of these

The following is the diagram of TS of anther. Identify the parts labeled as A, B and C.

(1) A-Connective, B-Endothecium, C-Pollen grain
(2) A-Endothecium, B-Connective, C-Pollen grain
(3) A-Pollen grain, B-Connective, C-Endothecium
(4) A-Endothecium, B-Pollen grain, C-Connective

Study of following statement and choose the correct option
I. Tapetum nourishes the developing pollen grains.
II. Hilum represents the junction between ovule and funicle.
III. In aquatic plants such as water hyacinth and water lily, pollination is by water.
IV. The primary endosperm nucleus is tripoloid.
(1) I and II are correct but III and IV are incorrect
(2) I, II and IV are correct but III is incorrect
(3) I and IV are correct but II and III are incorrect
(4) II and IV are correct but I and III are incorrect

Apomictic embryos is Citrus arise from
(1) synergids                    (2) maternal sporophytic tissue in ovule
(3) antipodal cells              (4) diploid egg

Which of the following statements about sporopollenin is false?
(1) Exine is made up of sporopollenin
(2) Sporopollenin is one of the resistant organic material
(3) Exine has apertures called germ pores where sporopollenin is present
(4) Sporopollenin can withstand high temperatures and strong acids