Which organelle lacks $DNA$ but is capable of duplication?

From which structure do cilia and flagella emerge?

Which organelle is helpful in cell division?

The animal cell is different from a plant cell in having

The arrangement of microtubules in a centriole is described as $...........$.

Which is correct for centriole function in animal cell?
$(I)$ Formation of bipolar spindle
$(II)$ Formation of lysosome
$(III)$ Formation of mesosome
$(IV)$ Formation of ribosome