Long filamentous threads protruding at the end of a young cob of maize are
(3) styles
As per NCERT, the familiar long tassels of the corn cob are nothing but the stigma and style which wave in the wind to trap pollen grains.
∴ The long filamentous threads (silk) of a young maize cob are styles (with stigmas), an adaptation for wind pollination.
Answer: (3)
In a cereal grain the single cotyledon of embryo is represented by
The arrangement of the nuclei in a normal embryo sac in the dicot plants is
In a type of apomixis known as adventive embryony, embryos develop directly from the
Which one of the following represents an ovule, where the embryo sac becomes horse-shoe shaped and the funiculus and micropyle are close to each other?
Through which cell of the embryo sac, does the pollen tube enter the embryo sac?
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is
An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is
Anthesis is a phenomenon which refers to
In a flowering plant, archesporium gives rise to
In angiosperms pollen tubes liberate their male gametes into the