The pollen tube usually enters the embryo sac
Through one of the synergids
By directly penetrating the egg
By knocking off the antipodal cells
Between one synergid and central cell
The type of placentation in which ovary is syncarpus, unilocular and ovules on sutures is called
Apical Placentation
Parietal placentation
Marginal placentation
Superficial placentation
Anemophillous flowers have
Sessile stigma
Small and smooth stigma
Coloured flower
Large and feathery stigma
Caruncle of albuminous dicot seed is derived from
Embryo
Peduncle
Cotyledon
Integument
Which of the following has largest gametophyte ?
Oryza
Funaria
Pinus
Selaginella
In cross self fertilized plants, the flowers are first emasculated. Which organ of the plant is removed in this process?
Ovary
Ovules
Stigmas
Stamens or anthers
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'
When a microspore mother cell with 40 chromosomes, undergoes meiosis, then each of the resulting cell will have
10 chromosomes
20 chromosomes
30 chromosomes
40 chromosomes
When the filament runs along the back of anther, it is called
Adnate
Versatile
Longitudinal
Syngenecious
Which of the following belongs to phanerogams ?
Thallophyta
Bryophyta
Pteridophyta
Angiosperm
