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Microspore in Biological Dictionary

Microspore

In biology, a microspore is a small spore as contrasted to the larger megaspore. This combination is found only in heterosperous organisms. Most plants that reproduce by spore without seed only produce one class of spore. In the ferns, the only megasporous plants are aquatic or semi-aquat...

Pollen grain

... ... Each pollen grain contains two sperm nuclei and one ... Each microspore develops by mitosis into a pollen grain . ... that the pollen grai...vel down the tube to ... Pollen grains are produced by meiosis of microspore mother cells that are ... a pollen grain . Note the thick sculptured ...

Microsporangium

... ... Microsporangium ,biological ,biology dictionary,biology terminology,biology terms, ... microsporangium The structure (sporangium) in which microspore ... microsporangium ... Microsporangium - Definition of Microsporangium at Dictionary.com a free online ... microsporangium - 3 dictionary...

Microgametophyte

...he spores produce two types of gametophytes: each microspore develops into a microgametophyte (male gametoph...phyte in plants having two types of ... A mature microspore that contains a microgametophyte ? ... micro... this microgametophyte population ... Each microspore divides by mitosis to form an immature microga...

Megagametophyte

...Assorted References heterospory in plants ( in plant (life form): Heterosporous life histories ) The spores produce two types of gametophytes: each microspore develops into a microgametophyte (male gametophyte), which ultimately produces male gametes (sperm), and each... Megagametophyte - Definitio...
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