Anemophillous flowers have
sessile stigma
small and smooth stigma
coloured flower
large and feathery stigma
When gynoecium is present in the topmost position of thalamus, the flower is known as
inferior
epigynous
perigynous
hypogynous
Vegetative reproduction by layering is found in
rose
mango
jasmine
all of these
The flower, which opens once in its life time, is called
polycarpic
monocarpic
cleistogamous
cleistocarpic
Many plants reproduce asexually, forming new individuals by
crossing-over
meiotic cell division
mitotic cell division
both '1' and '2'
Chalazogamy is the characteristic of
Betula
Casuarina
Cucurbita
both 1 and 2
Plants often reproduce vegetatively (asexually by forming new plants from portions of their
roots
stems
leaves
Secondary dormancy is due to the absence of
hormones
suitable plants
favorable conditions
unfavorable conditions
Pollen grains are able to withstand extremes of temperature and dessication, because their exine is composed of
cutin
suberin
callose
sporopollenin
Ovary is called inferior in
epigynous condition
hypogynous condition
perigynous condition
mesogynous condition