Question

Dichogamy which helps in cross pollination is a floral mechanism in which
A. Pollen sac and stigma are at different heights
B. Anther and stigma mature at different times
C. Structure of pollen sac and stigma functions as hurdles
D. Pollen grain is unable to germinate on the stigma of the same flower

Answer 1

Correct Answer - B
Dichogamy is the maturation of another and stigmas of a flower at different times e.g. sunflower.