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)

Related questions

0 votes
1 answer 18 views
18 views asked May 30, 2013 in Biology by anonymous



...