. Cytology. Cytology. First meiotic anaphase c f. Figure 8-4. Diagrammatic Representation of a Paracentric (A) and peri- centric (B) inversion. (From Srb, A. M. and Owen, R. D., 1955. "General Genetics," W. H. Freeman & Co., San Francisco, Calif., Fig. 10-14, p. 197.) matin bridge, and an akinetic fragment which is generally lost (Fig- ure 8-5). Thus the resultant four end products of meiosis consist of two normal cells and two cells having deletions as a consequence of the loss of the fragment. Since the latter two are nearly always inviable, every gamete mother cell so affected

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. Cytology. Cytology. First meiotic anaphase c f. Figure 8-4. Diagrammatic Representation of a Paracentric (A) and peri- centric (B) inversion. (From Srb, A. M. and Owen, R. D., 1955. "General Genetics," W. H. Freeman & Co., San Francisco, Calif., Fig. 10-14, p. 197.) matin bridge, and an akinetic fragment which is generally lost (Fig- ure 8-5). Thus the resultant four end products of meiosis consist of two normal cells and two cells having deletions as a consequence of the loss of the fragment. Since the latter two are nearly always inviable, every gamete mother cell so affected will produce only 50 per cent viable gametes. Thus if a chiasma is produced in the inversion region, 100 per cent of the time the organism will be only 50 per cent fertile. CYTOGENETICS / 183. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, G. B. (George Bernard), 1914-; Morrison, John H. (John Herbert), 1927-. New York, Reinhold

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