autosexing


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autosexing

a technique by which the sex of an offspring can be determined without examination of the genitalia. For example, the sex of young poultry chicks is difficult to determine anatomically. However, a ‘Barring’ gene allows the feather colour of females (one X-chromosome) to be distinguished from that of males (two Xs).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005