The centrosome is ..........

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(B) The $centrosome$ is a non-membrane-bound organelle that contains two cylindrical structures called $centrioles$.These $centrioles$ are composed of

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absent in amoebae,red algae,blue-green algae,conifers,and angiosperms,and is composed of peripheral triplets of microtubules.

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(B) The $centrosome$ is a non-membrane-bound organelle that contains two cylindrical structures called $centrioles$.These $centrioles$ are composed of nine peripheral triplets of microtubules arranged in a $9+0$ pattern.$Centrosomes$ are absent in higher plants like $angiosperms$ and $conifers$,as well as in some protists like $amoebae$ and certain algae (e.g.,$red$ $algae$,$blue-green$ $algae$).They play a primary role in the formation of the spindle apparatus during cell division,not a secondary one.Therefore,option $B$ is the most accurate description regarding its composition and distribution.

Similar Questions

The function of the centrosome is:

Which organelle is present in all animal cells?

$S$ - Statement: Basal bodies are associated with the formation of cilia and flagella.
$R$ - Reason: Nucleoli contain the nucleus and chromatin material.

Centrioles and centrosomes are present in the cells of . . . . . . .

The central part of the centriole is made up of:

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