Which of the following pairs of structures is | vedclass

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(B) Neurons are specialized cells that contain typical cell organelles like the $Nucleus$ and $Mitochondria$ (found in most cells). $Perikaryon$ (cell

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Flagella and myelin sheath

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(B) Neurons are specialized cells that contain typical cell organelles like the $Nucleus$ and $Mitochondria$ (found in most cells). $Perikaryon$ (cell body) and $Dendrites$ are characteristic structures of neurons. $Vacuoles$ and $Filaments$ are also present in various cell types. However,the $Myelin$ $sheath$ is a specialized insulating layer formed by glial cells (Schwann cells or oligodendrocytes) around the axon,and $Flagella$ are typically absent in mature neurons. Among the given options,the pair $Flagella$ and $Myelin$ $sheath$ is the most distinct because $Myelin$ $sheath$ is a unique feature of nerve fibers,and $Flagella$ are not standard components of neuronal structure.

Column-$I$	Column-$II$
$P$. Unipolar neuron	$I$. Embryonic stage
$Q$. Bipolar neuron	$II$. Cerebral cortex
$R$. Multipolar neuron	$III$. Retina of eye

Which of the following pairs of structures is distinct from the other types of cells found in neurons?

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