NEETBotanySexual Reproduction in Flowering Plants
What characterizes chasmogamous flowers?
Options
- AFlowers that do not open at all
- BFlowers with exposed anthers and stigma
- CFlowers that open at night
- DFlowers that have a strong fragrance
Correct answer
B. Flowers with exposed anthers and stigma
Step-by-step solution
Autogamy: In this type, pollination is achieved within the same flower. Transfer of pollen grains from the anther to the stigma of the same flower. In a nomal flower which opens and exposes the anthers and the stigma, complete autogamy is rather rare. Autogamy in such flowers requires synchrony in pollen release and stigma receptivity and also, the anthers and the stigma should. lie close to each other so that self-pollination can occur. Some plants such as Viola (common pansy), Oxalis, and Commelina produce two ty