Some drugs modulate the activity of ion channels. for example, novocain somewhat inhibits the opening of sodium channels. what happens to the threshold of a sensory neuron if this drug is used?

it will take more stimulation to reach the threshold.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

silty loam

hope this