Question

Which one of these species has one meganucleus and two micronuclei?

• A. Paramecium aurelia
• B. Paramecium bursaria
• C. Paramecium caudatum
• D. Paramecium multimicronucleatum

Answer 1

The correct option is A Paramecium aurelia

Paramecium aurelia belonging to phylum ciliophora are unicellular organisms. It is a complex organism and has cytoplasm in which all the components of cells are dispersed. It has two types of nuclei i.e., meganucleus and micronuclei. The mega-nucleus controls metabolism such as feeding and maintenance and is polyploid, whereas the micronucleus takes an important role in reproduction and is diploid

Thus, the correct answer is option A.