Master of Science II (Botany) Examination: Oct Nov 2016
Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR SM-
144
Wednesday
16/11/2016
2:30 P.M
to
5:00 P.M
Plant Embryology and
Palynology
C
IX
Instructions: Question no. 1 is compulsory.
Attempt any two questions from question no.2, 3 to 4.
Attempt any two questions from question no.5, 6 to 7.
Figures to the right indicate full marks.
Draw neat and labeled diagram wherever necessary.
Total Marks: 70
Q.1 Rewrite the following sentences by selecting correct answers from given
alternative.
14
of endosperm is restricted largely to be the Monocots.
Cellular Helobial
Polyembryony None
Stub pollination has proved effective in overcoming
Pollination Fertilization
Incompatibility None
Fusion of the egg nucleus with sperm nucleus is called
Syncarpous Synonyms
Syngamy Progamy
Pollen tube entry into the ovule through the funiculus is called

Chalazogamy Mesogamy
Porogamy Hologamy
The pollen intine is in nature.
Sporopollenin Pecto-cellulosic
Pectin Legnin
Highly reduced exine is adaptation for forests.
humid tropical dry deciduous
hot thorny dry tropical
Age of tree could be cause for
polyembryony apomixes
apospory diplospory
Transfer of pollen grains from male parent to stigma by bats is called

anemophily entomophily
ornithophily cheiropterophily
are present in Chenopodiaceae.
Amphilotropous Circinotropous
Anatropous Campylotropous
10) the following induces polyembryony.
NAA Kinetin
Gibberellins None
11) main difference between the mature embryo of Dicots and
Monocots.
Number of embryo Number of cotyledons
Nature of radicle Nature of plumule
12) In the structure of the male and female sex organs in bisexual
flower itself proves a barrier to self pollination.
Dichogamy Herkogamy
Heterostyly All
13) ions are a naturally occurring chemotropic agent in the
interaction.
Pollen-pistil Sperm-egg nucleus
Sperm-secondary nucleus None
14) In type of apomicts diploid embryo sac produced through mitotic
division.
apospory dislospory
both none
Q.2 Give an account of structure of exine pollen wall with suitable diagram. 07
Explain structure and function of amoeboid tapetum with suitable diagram. 07
Q.3 Explain abnormal male gametophyte and its features. 07
Discuss ultra structure of female gametophyte with suitable diagram. 07
Q.4 Explain scope of palynology. 07
Explain barrier to fertilization with suitable example. 07
Q.5 Explain genetic basis of self incompatibility. 10
Discuss biological significance of incompatibility.
Discuss role of palynology in Taxonomy of Angiosperms. 04
Q.6 Explain pollen pistil interaction with suitable diagram. 10
What is dislospory? Discuss its causes and significance.
Discuss forage behavior of Bee. 04
Q.7 What is polyembryony? Discuss its practical significance. 10
Give an account of allergic properties of pollen.
Discuss methods to overcome incompatibility. 04