BIOCHEMISTRY

FG1 embryo sac

A stage FG1 embryo sac viewed by electron microscopy.  The two dark masses above the embryo sac are the degenerate remains of two of the non-functional female gametophytes.

FG1 embryo sac, outlined in black.  Nucleus is outlined in white.  M = mitochondria.  Degenerate = degenerate remains of nonfunctional female gametophytes.  H = Holes in resin left by incomplete embedding process.

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