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Posted By: bharath sudar        Member Level: Platinum       Posted Date: 15 Aug 2008       Category: Biology

In more than one pollen tubes discharge their contents inside an embryo sac and the sperm fusing with the egg is derived from one tube and the one fusing with the secondary nucleus from another tube, it is called












Select Answer:

Hetero fertilization
Polyspermy
Heterospermy
Polygamy




      
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