A motor neuron is a neuron which consists of a cell body and axon. Cell body lies in the motor cortex, spinal cord or brainstem and axon projects outside the spinal cord or inside the spinal cord which directly or indirectly controls the function of muscles or glands.
The functions associated with the movement of muscles or glands are directly affected by the injured motor neurons.
In your question that ask to find out or to select which of the following among your choices does and individual with a Turner Syndrome and we all know that this is one of the disease that has a chromosomal descripancies and the answer is B. 2n-1