How does the interaction between pollen and stigma in flowering plants compare to the interaction between bindin and its egg-cell receptor in sea urchins?

Question

Quizplus · Accepted Answer

Both interactions involve specific recognition and binding between molecules on the surface of the pollen/stigma or bindin/egg-cell receptor. This specificity ensures that fertilization only occurs between members of the same species, preventing hybridization between different species.

How Does the Interaction Between Pollen and Stigma in Flowering