How does current theory explain the origin of a nucleus in eukaryotic cells?
A) A prokaryotic cell was engulfed by another cell and became specialized in DNA replication.
B) A prokaryotic cell was engulfed by another cell and became specialized in DNA transcription.
C) A prokaryotic cell was engulfed by another cell and became specialized in translation.
D) While there are some competing theories on the origin of the nucleus, neither theory discussed in the text really explains the origin of the nucleus.
E) None of the answer options is correct.
Correct Answer:
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