(A) One of the polar nucli fused with the synergides and one male gemete with egg cell
(B) Fusion of one mele gemete with sceondry nuclus and the and other with antipodal cell
(C) Fusion of one antipodal cell with egg cell of synergides cell
(D) Fusion of one mele gemete with female gemete
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Adventitive embryoyny in Citrus is due to:
(A) Nucellus
(B) Integuments
(C) Zigotic embryo
(D) Fertilized egg
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In grass what happens in microspore mother cell for the formation of mature pollen grains:
(A) One meiotic and two mitotic division
(B) One meiotic and one mitotic division
(C) One meiotic division
(D) One mitotic division
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Which one breaks the dormancy of potato tuber:
(A) Gibberellin
(B) IAA
(C) ABA
(D) Zeatin
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Which is the eyes of potato:
(A) Auxillary bud
(B) Accessary bud
(C) Adventious root
(D) Apical bud
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Anemophily type of pollination is found in:
(A) Salvia
(B) Bottle brush
(C) Vallisneria
(D) Coconut
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By which action a seed coat becomes parmable to water:
(A) Scarification
(B) Starification
(C) Vernalization
(D) All of the above
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Endosperm is formed during the double fertilization by:
(A) Two polar nuclai and one male gemete
(B) One polar nuclai and one male gemete
(C) Ovume and male gemete
(D) Two polar nuclai and two male gemete
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Eight nuclated embryo sac is:
(A) Only monosporic
(B) Only bisporic
(C) Only tetrasporic
(D) All of the above