How does the structure of each type of neuron relate to its function in the nervous system?

Motor neurons:

A. Function:

It relay messages coming from the brain or spinal cord to the muscles or organs.

B. Structure:

●Presence of long axons due to long distances the signals have to travel to the muscle its stimulating.

●It's myelinated, to assist the signal in travelling long distances as soon as possible.

Sensory neurons:

A. Function: its sensory receptors respond to stimuli by converting it into an electrical signal to the brain or spinal cord.

B. Structure:

●Presence of long dendrites / axons

● its myelinated

●since it's found in the middle of the neuron it forms ganglia that unites in the spinal cord and aid in involuntary reflexes.

Interneurons:

Structure:

● shorter than motor or sensory neurons

● has branches, a lot of branches consisting of axons and dendrites off the cell body to enable multiple simultaneous between neurons

● It's body is partially myelinated.

●occurs in large clusters of neurons to compensate for its partial myelination to speed up the signal

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus