What is the role of the S genes expressed within the pollen and stigma of flowers of the cabbage family?

+3 votes



These genes ensure that the pollen grain germinates and is able to grow a pollen tube that reaches the ovule.


These genes enforce outcrossing.


These genes promote self-fertilization.


These genes ensure that pollinators can recognize the appropriate flowers and only pollinate flowers of the same species.


asked Dec 31, 2012 in Biology by anonymous

1 Answer

+1 vote


These genes enforce outcrossing.


answered Dec 31, 2012 by Luffy ~Expert~ (977 points)

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