Which of the following does NOT describe the macronucleus of a paramecium?
A. The macronucleus does not disintegrate during conjugation.
B. The macronucleus is not exchanged during conjugation.
C. The macronucleus has multiple copies of the genes that are used in day-to-day activities.
D. The macronucleus forms from the fusion of micronuclei.