Cytology of Lepidosiren


PROF AGAR has read with insufficient care my article on "Mendel, Morgan and Genetics" which was published in NATURE of August 28. I reproduced in that article two drawings of the figures given by Prof. Agar of two meiotic "pairings" within the same nuclear cycle. I further said that Prof. Agar's hypothesis to explain these was plainly incredible and I gave the credit for perceiving that Lepidosiren would furnish a critical case for testing the "crossing-over" theory and for planning the research to Prof. Agar's teacher, Prof. Graham Kerr.

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MACBRIDE, E. Cytology of Lepidosiren. Nature 140, 932 (1937).

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