Fertilization in some plants is similar to fertilization in sea urchins in that _____.

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in some plants, proteins on the surface of the pollen grain and the stigma interact to prevent fertilization between members of different species, similar to the interaction between bindin and receptor proteins on the egg-cell receptor in sea urchins.

like sea urchins, some plants release their sperm and eggs into the environment to undergo external fertilization

like sea urchins, some plants prevent polyspermy by forming a fertilization envelope after a sperm has entered the egg

All of the listed responses are correct.

 

asked Dec 28, 2012 in Biology by anonymous
    

1 Answer

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in some plants, proteins on the surface of the pollen grain and the stigma interact to prevent fertilization between members of different species, similar to the interaction between bindin and receptor proteins on the egg-cell receptor in sea urchins.

 

answered Dec 28, 2012 by anonymous

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