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| Micronucleus (mic) of O. coarctata. The nuclear envelope (ne) has numerous pores, at least as many per unit length as in the macronucleus (mac). Some areas of the outer membrane of the micronucleus envelope bare ribosomes (arrow). EM taken on 6/11/69 by R. Allen with Philips 300 TEM. Neg. 23,200X. Bar = 0.5µm. |
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