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. 2009 Jan 23;32(1):91–95. doi: 10.1590/S1415-47572009005000019

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Copyright © 2009, Sociedade Brasileira de Genética.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Metaphase plates of Cornops aquaticum showing orientation and segregation of the trivalents. (A) Metaphase I with two trivalents, one with convergent orientation (solid arrow) and the other with linear orientation (hollow arrow); (B) Metaphase I with three trivalents, two with convergent orientation (solid arrows) and one with linear orientation (hollow arrow); (C) Metaphase II with two submetacentric (arrowheads) and seven acrocentric chromosomes; (D) Metaphase II with 12 acrocentric chromosomes. Bar = 10 μm.