When an ovary develops into a fruit, without fertilization, it is called
apospory
apogamy
porogamy
parthenocarpy
The type of placentation in which ovary is syncarpus, unilocular and ovules on sutures is called
apical placentation
parietal placentaiton
marginal placentation
superficial placentation
Pollen grains are able to withstand extremes of temperature and dessication, because their exine is composed of
cutin
suberin
callose
sporopollenin
What is meant by double fertilization?
formation of two zygotes
fusion between egg and male gamete
fusion between secondary nucleus and male gamete
both '2' and '3'
The asexual reproduction of seed is called
apomixis
advention
fragmentation
self-fertilization
Plants often reproduce vegetatively (asexually by forming new plants from portions of their
roots
stems
leaves
all of these
Secondary dormancy is due to the absence of
hormones
suitable plants
favorable conditions
unfavorable conditions
'Apoximis' term was given by
Focks
Winkler
Swingle
Nawaschin
When gynoecium is present in the topmost position of thalamus, the flower is known as
inferior
epigynous
perigynous
hypogynous
The main characteristic of anemophillous flower is
large, odourless with nectar
large, odourless without nectar
small, odourless with nectar
small, odourless without nectar
