A bisexual flower, which always remains closed, is called
Cleistogamous
Dichogamous
Chasmogamous
Geitonogamous
The emasculation of flower buds is achieved by the removal of
Sepals
Anthers
Stigma
Corolla
When pollen tube enters into the ovule by integument, it is called
Dicling
Chalazogamy
Herkogamy
Mesogamy
The type of placentation in which ovary is syncarpus, unilocular and ovules on sutures is called
Apical Placentation
Parietal placentation
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
Ovary is called inferior in
Epigynous condition
Hypogynous condition
Perigynous condition
Mesogynous condition
The living fossil amongst following is
Cycas
Pinnus
Gnetum
Pandanus
An orthotropous ovule is one, in which chalaz and funicle lie
Parallel along with ovule
Parallel to the micropyle
In straight line of micropyle
At right angles to micropyle
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
Anemophillous flowers have
Sessile stigma
Small and smooth stigma
Coloured flower
Large and feathery stigma