Question

Macro and micronucieus are the characteristic feature of

(a) Paramecium and Vorticella

(b) Opelina and Nictothlrus

(c) Hydra and Ballantidium

(d) Vorticella and Nlctothlrus

Answer 1

Correct option (a) Paramecium and Vorticella

Explanation:

Paramecium and Vorticella have dimorphic nucleus (heterokaryotic). Micronucleus that is inactive except dudng ceil division and houses the master copy of the genome. Macronucleus controls daily synthetic activities or on going metabolic functions of the cell and asexual reproduction. Macronucleus contains multiple copies of DNA.