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25 Feb

Check out this excellent series of micrographs of an onion cell undergoing meiosis to produce pollen. Be sure to check out the descriptions of each phase in the process as you walk through the process. The Prophase2 illustration is difficult to pick out – however, this is reality. To paraphrase Roger Waters “Reality shows what is;Textbooks illustrate what mother nature intended.”

Seeds Aside

Just because people deserve microscopy! Here is illustrated a male meiosis, which produces the four pollen grains, in Allium senescens (Alliaceae, Asparagales). There is nothing like seeing chromosomes or cells dividing… (before I come back into writing stuff).

Male meiosis in A. senescens

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Posted by on February 25, 2013 in Uncategorized

 

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