Select the correct answer from Each Drop Down menu •A pharmacist could use (A. DNA Fingerprinting, B. Genetic engineering) to modify the DNA of a bacterium to cause it to produce a human hormone

•A forensic scientist could use ___ (A. DNA Fingerprinting, B. Genetic engineering) to compare the DNA of a suspect to DNA left at the scene of a crime.

•A plant geneticist could use (A. DNA Fingerprinting, B. Genetic engineering) to insert a gene for pest resistant into the genome of a crop plant .

•An evolutionary could use ___ (A. DNA Fingerprinting, B. Genetic engineering) to compare the DNA of several species in order to determine relatedness.

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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i thinking chemical change

so whats the answer