Unformatted text preview: animals, half the male gametes have a "Y" chromosome, and half have an "X" chromosome, so it should not be surprising that meiotic products in plants can have gender differences.) Heterosporous plants always have separate male and female sporangia. The microsporangia produce only microspores that grow into male gametophytes, producing only antheridia. Megasporangia produce megaspores that grow into female gametophytes, producing only archegonia. The megasporangia and microsporangia may be found on the same sporophyte individual, or on separate sporophyte individuals....
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- Fall '09
- Plants, Fern, Spore, Gametophyte, Plant Kingdom, Male gametophytes, female gametophytes