Q. Which of the following unicellular organism has a macro-nucleus for trophic function and one or more micro-nuclei for reproduction ?
A) Euglena
B) Amoeba
C) Paramecium
D) Trypanosoma
Explanation
[Solution from source] Ciliates such as Paramecium have nuclear dimorphism: a large macronucleus controls everyday metabolism, and micronuclei take part in conjugation. Euglena, Amoeba and Trypanosoma each have a single kind of nucleus. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.