Question

Which unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction?

• A. Euglena
• B. Amoeba
• C. Paramecium
• D. Trypanosoma

Answer 1

The correct option is C Paramecium

• Paramecium have two kinds of nuclei, a large ellipsoidal nucleus called a macronucleus and at least one small nucleus called a micronucleus.
• The macronucleus is the centre of all metabolic activities of the organism.
• The micronucleus is a storage site for the genetic material of the organism.
• It gives rise to the macronucleus and is responsible for the genetic reorganization that occurs during conjugation.
  

Therefore, the correct answer is option C.