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| A replication band (rep b) of the macronucleus (mac) has larger heterochromatin masses on one side of the band after DNA replication has occurred. Vacuoles (vac) containing concretion bodies are indicated. Arrow indicates direction of replication band movement. no, nucleolus. EM taken on 8/03/67 by R. Allen with Philips 200 TEM. Neg. 7,200X. Bar = 1µm. |
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