Question

Dichogamy is

• A. Placement of anthers and stigmas at different levels
• B. Inability of the pollen to germinate on the stigma of the same flower
• C. Occurrence of barrier between anther and stigma of the same flower
• D. Maturation of anthers and stigmas at different times

Answer 1

The correct option is D Maturation of anthers and stigmas at different times

Dichogamy- It is the condition when the anther and stigma mature at different times. Either anthers dehisce before the stigma becomes receptive (called protandry) or stigma becomes receptive before anthers dehisce (called protogyny).

While placement of anthers and stigma at different levels is called Heterostyly, inability of pollen to germinate on the stigma of the flower is called self-incompatibility and the occurrence of a barrier between anther and stigma of the same flower is called Herkogamy.

So, the correct answer is D.