The basic hereditary unit of information in biology is the
a. cell
b. gene
c. chromosome
d. genome
e. gamete

Option B

Explanation: A gene is the specific portion or sequence on the DNA (Deoxyribonucleic acid) that is able code for a functional protein. Thus, the entire DNA sequence in each cell consists of several genes and some non-coding portions that all makes up the complete hereditary information usually called genome.

Observe this linear chain

Cell -> Chromosomes -> DNA -> Gene.

The above illustrates that a gene is the basic carrier of hereditary information.

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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.  

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