Molecular genetic research reveals that some endogenous genes in plants are responsible for parthenocarpy, even that some genes derived from bacteria can regulate the production of plant hormones.

分子遗传研究表明，植物基因组中含有影响单性结实的基因，某些来自于细菌的基因也可在植物激素生物合成途径中起调节作用。

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Vitamin D appears to regulate insulin production in the pancreas, and a deficiency could raise diabetes risk.

CNN: Vitamin D may be essential for heart health

Enzymes, too, are proteins, and so are the transcription factors that regulate their production.

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Firms that produce pesticides, and the authorities that regulate them, are aware of the importance of bees to food production, and new products must be tested to make sure they are not fatal to helpful insects.

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