CBSE
Multiple Choice QuestionsSeed which are able to withstand reduction in moisture and temperature are called
dormant seeds
recalcitrant seeds
orthodox seeds
non- viable seeds
Tetradynamous stamens are found in :
Chrysanthemum
Zinnia
Poppy
Brassica
Removal of top fertile soil by wind or water is :
Siltation
Soil erosion
Weathering of soil
Leaching
The formation of embryo without fusion of gametes is termed as :
apospory
isogamy
apogamy
syngamy
Anthesis means
growth of pollen tube inside the carpel
dehiscence of anthers
opening of floral bud
emergence of anthers
Aleuron layer is found in :
embryo
nucellus
endosperm
endodermis
Pollination occuring from one flower to another of same plant is :
autogamy
allogamy
geitenogamy
none of these
Diadelphous stamens are the characteristic features of :
Ranunculaceae
Fabaceae
Poaceae
Malvaceae
Phytochrome occurs in two forms. In which form it promotes the germination of seeds of some species ?
Pfr forms
Pr forms
Both forms
None of these
Outgrowth developing along with hilum of the seed is:
Plumule
Radicle
Strophiole
Perisperm
