Solarisation is
formation of chlorophyll
destruction of chlorophyll
utilisation of sunlight
effects of solar light
A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous
Which of the following is not the feature of gymnosperms?
parallel venation
perennial plants
distinct branches (long and short branches)
xylem with vessels
D.
xylem with vessels
Gymnosperms are naked seed bearing perennial plants. In gymnosperms, no fruit formation takes place as ovary is absent; xylem without vessels and phloem without companian cells and have distinct branches.
Edible part in 'sorosis', a composite fruit, is
cotyledons
endosperm
perianth and peduncle
fleshy thalamus
Most primitive member, in which roots are not present, is
Psilotum
Rhynia
Lycopodium
Selaginella