What does DNA stands for

DNA for Deoxyribonucleic acid

Explanation:

DNA is the chemical name for the molecule that carries genetic instructions in all living things.

Deoxyribonucleic acid is a molecule made of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

read more on -

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies