单词	morphogen
释义	morphogen /ˈmɔːfədʒ(ə)n / noun Biology A chemical agent able to cause or determine morphogenesis.The Hedgehog proteins are secreted morphogens that provide positional information during the development of many multi-cellular animals.... He suggested that biological forms mirror patterns in the concentrations of hypothetical chemicals called morphogens. For example, many morphogens - molecules that direct cells to grow and differentiate during embryogenesis - are not water - soluble, so biologists know little about how they spread out during early development.
随便看	social centre social change social chapter social character social charter social chauvinism social chauvinist social class social cleansing social climb social climber social climbing social column social columnist social commentary social commentator social compact social conscience social consciousness social construct social constructionism social constructionist social constructivism social constructivist social contract

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