Inability of functional pollen of one species or genera to effect fertilisation of the female of related species or genus is called

A. Cross-incompatibility

B. Hybrid inviability

C. Both A and B

D. None of these

Answer: Option A

Solution(By Examveda Team)

The inability of functional pollen of one species or genera to affect the fertilisation of the female of a related species or genus is called Cross-incompatibility.
CI has been defined as any relationship (or its absence) between pollen and pistil which prevents hybrid zygote formation in crosses between two fertile species.
Incompatibility is a common means of controlling breeding behaviour among plants, and has been an important factor in evolution.