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Biology 8 Online
OpenStudy (anonymous):

A pollen grain contains the male gametophyte, which is __________.

OpenStudy (anonymous):

Male gametophyte produce male gametes.. that is two sperm cells which are haploid and they undergo fertilization to produce a diploid zygote and a triploid primary endosperm nucleus (PEN) that develops into endosperm.. Well,if it's from your book..then you have to read it to fill the blank.

OpenStudy (anonymous):

It is 'haploid'.

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