Which statement about the macronucleus and the micronucleus of ciliates is correct?
A. The macronucleus is diploid and the micronucleus is haploid.
B. The macronucleus forms by the fusion of micronuclei from two different mating types.
C. The micronucleus is formed by fission of the macronucleus.
D. The micronucleus transmits genetic information through mitosis and meiosis, while the macronucleus maintains routine cellular functions.
Answer: D
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