Archive for the ‘Uncategorized’ Category


Şubat 25, 2010 Yorum bırakın

Morphogenesis (from the Greek morphê shape and genesis creation, literally, “beginning of the shape”), is the biological process that causes an organism to develop its shape. It is one of three fundamental aspects of developmental biology along with the control of cell growth and cellular differentiation. The process controls the organized spatial distribution of cells during the embryonic development of an organism. Morphogenetic responses may be induced in organisms by hormones, by environmental chemicals ranging from substances produced by other organisms to toxic chemicals or radionuclides released as pollutants, and other plants, or by mechanical stresses induced by spatial patterning of the cells. Morphogenesis can take place in an embyro, a mature organism, in cell culture or inside tumor cell masses.

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South Park Photo Gallery

Aralık 31, 2009 Yorum bırakın

South Park Photo Gallery