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Question

Animal cells differ from plant in having which of the following organelle?

A
Centrosome
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B
Golgi body
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C
Vacuole
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D
Plastid
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Solution

The correct option is A Centrosome
Centrioles are minute submicroscopic subcylindrical structures of 0.3 to 0.5 micrometer in length and 0.15 micrometer in diameter which usually occur in the pair (diplosome) inside a specialized cytoplasm called centrosphere or kinoplasm. The complex is called a centrosome or central apparatus. Centrioles are required to form basal bodies, cilia, flagella, and astral spindle fibres. Most animal cells have centrosomes. Plant cells do not possess centrosomes. In plant cells, the spindle is acentric or anastral as against animal cells in which the spindle bears asters at the two poles. Such a spindle is called amphiaster or centric spindle.

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