Science: Parthenocarpy

For the sake of knowledge, experimental biologists tweak the nose of Nature by causing plants and animals to produce offspring without proper parentage. Tadpoles have been coaxed out of unfertilized frogs' eggs; live, healthy rabbits have been born after a conception which took place m a_ glass vessel; cell fragments of sea urchin eggs—fragments not even containing the female nucleus—have been fertilized with hypertonic sea water. Reported last week was a new fraud on Nature: the fertilization of holly and other plants with a chemical instead of natural pollen.

The method is called...

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