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Protozoans

Presence of t...

Question

Presence of two types of nuclei - micronucleus and macronucleus - is a characteristic of which group of Protista?

A

Sporozoa

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B

Ciliata

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C

Flagellata

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D

Sarcodina

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Solution

The correct option is B Ciliata
The protists include eukaryotic unicellular forms which have one nucleus except the ciliates. Ciliates have two types of nuclei - micronucleus and macronucleus and presence of thousands of cilia on their surface. Paramecium is an example. The macronucleus controls the vegetative functions and the micronucleus controls the reproductive functions.

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