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Q.
Which of these contains two nuclei, one for vegetative purpose and other for
reproduction?
Reproduction in Organisms
Solution:
Paramecium is a genus of ciliated protozoa, abundant in freshwater and much studied in terms of nuclear/cytoplasmic relations. P. aurelia is the most studied species. Paramecium species are noted for their possession of two nuclei per cell, a large polyploid vegetative nucleus - the macronucleus and a small, diploid micronucleus, active only during conjugation.