August Weismann's germ plasm theory of the late 19th century posited that only germ cells, e.g., sperm and egg cells in animals or pollen and ovule cells in plants, transmit genetic information to the ...

IN his brilliant analysis of the phenomena of growth, T. B. Robertson (“Chemical Basis of Growth and Senescence,” 1923) starts with the assumption that growth phenomena can be likened to certain ...

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