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An adult C. elegans hermaphrodite

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C. elegans embryonic development

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A worm sperm

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Sperm (red) guidance to the spermatheca in a wild-type hermaphrodite worm

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Sperm guidance to the spermatheca in a prostaglandin-deficient hermaphrodite

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C. elegans oocyte maturation and ovulation

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Mitochondria in wild-type body wall muscle

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Mitochondria in vpr-1 null mutant body wall muscle

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Transgenic C. elegans embryo expressing GFP on chromosomes

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