Animal KingdomHard
Question
Which of the following unicellular organism has a macro-nucleus for trophic function and one or more micro-nuclei for reproduction ?
Options
A.Euglen
B.Amoeba
C.Paramecium
D.Trypanosoma
Solution
Paramecium is a heterokaryotic organism ie, it has two nuclei near the cytostome (oral shaped opening called mouth). The macronucleus which is a conspicuous larger ellipsoidal vegetative nucleus, divides amitotically and controls the vegetative characters and micronucleus is a small compact reproductive nucleus which divides mitotically controls the reproduction.
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