Is the micronucleus of ciliates a diploid nucleus?

The answer is yes.

The uniqueness of the ciliate lies in the fact that it has two nuclei in its structure – a micronucleus and a macronucleus. The diploid set contains just a micronucleus, which is vital to the ciliate’s body. Scientists have not identified specific functions, but found that when the micronucleus is removed, the ciliate dies. During the conjugation period, it divides meiotically and micronuclei are formed.

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