Q. Which one of the following is not a device to promote cross-pollination?
A) Cleistogamy
B) Heterostyly
C) Herkogamy
D) Dichogamy
Explanation
Cleistogamy is the condition when flowers remain closed and self-pollination is the rule. Commelina benghalensis produces underground cleistogamous and aerial chasmogamous flowers. Cleistogamy is also seen in Impatiens, Viola , Subularia, etc.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.