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Nishith R. Mohanty, the CEO of Nucleotides, is an experienced educator with over nine years of teach

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Core Paper XI
REPRODUCTIVE BIOLOGY OF ANGIOSPERMS
Unit-I
(i) Introduction: History and scope.
(ii) Anther: Anther wall: Structure and functions, micro-sporogenesis, callose
deposition and its significance.
(iii)Pollen biology: Micro-gametogenesis; Pollen wall structure, MGU (male germ unit)
structure, NPC system; Palynology and scope (a brief account); Pollen wall proteins;
Pollen viability, storage and germination; Abnormal features: Pseudomonads,
polyads, massulae, pollinia.
Unit-II
Ovule: Structure; Types; Special structures–endothelium, obturator, aril, caruncle and
hypostase; Female gametophyte– mega-sporogenesis and mega-gametogenesis; Types and
ultra structure of mature embryo sac (Details of Polygonum type).
Unit-III
(i) Pollination and fertilization: Pollination types and significance; adaptations;
structure of stigma and style; path of pollen tube in pistil; double fertilization.
(ii) Self incompatibility: Basic concepts; Methods to overcome self- incompatibility:
mixed pollination, bud pollination, stub pollination; Intraovarian and in vitro
pollination; Modification of stigma surface.
Unit-IV
(i) Endosperm: development, structure and functions
(ii) Embryo: Types of embryogeny; General pattern of development of dicot and
monocot embryo; Suspensor: structure and functions; Embryo- endosperm
relationship; Nutrition of embryo; Embryo development in Paeonia.
(iii)Seed: Structure, importance and dispersal mechanisms
(iv) Polyembryony and apomixes: Introduction; Classification; Causes and applications.

REPRODUCTIVE BIOLOGY OF ANGIOSPERMS(BSC. BOTANY 5TH SEMESTER)

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