Biology questions
20584 published questions with worked solutions.
- _______ flowers produce needle-like pollen grains without exine
- In Ceratophyllum, pollination is
- The transfer of pollen grains from anther of a flower to the stigma of another flower produced on a different plant belonging to...
- Cross-pollination is also called as
- _______ type of pollination is considered as the most primitive type of pollination
- 75-80% of insect pollination is achieved with the help of _______
- Which of the following is not an anemophilous plant?
- Pollination through the agency of insects is known as
- The transfer of pollen grains through wind is described as
- The hypohydrophilous male flowers float below the water surface because
- The process of transfer of pollen grains from anther to the stigma of flower is called
- The transfer of pollen grains from anther of a flower to the stigma of another flower produced on a different plant belonging to...
- Anemophilous flowers are
- Which of the following floral adaptations are adapted by hydrophilous flowers?
- In gymnosperm, endosperm is
- The fertilization process in which non-motile male gametes are transported upto the female gamete through a pollen tube is called
- When pollen tube enters the embryo sac
- Real function of the 'endosperm' is to
- Double fertilization means
- Triple fusion means, fusion of