Complete the sequence involved in binary fission in amoeba.
Nucleus enlarges `to(A)to"Cytokinesis"to(B)`

Explanation

To complete the sequence involved in binary fission in amoeba, we can break down the process into clear steps:

1. **Nucleus Enlarges**: The process begins with the parent amoeba cell, where the nucleus enlarges. This is the initial step in binary fission.

2. **A (Karyokinesis)**: After the nucleus enlarges, it undergoes division. This division of the nucleus is known as karyokinesis. Therefore, A in the sequence is "Karyokinesis".

3. **Cytokinesis**: Following karyokinesis, the cytoplasm of the parent cell divides. This division of the cytoplasm is referred to as cytokinesis. This step is already provided in the sequence.

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