There are different classes of mutation but the descriptions given here are specifically applied to cystic fibrosis, particularly referring to the CFTR (<span>Cystic fibrosis transmembrane conductance regulator) </span>gene.
<u>Mutation Classes</u> Class I - Gene contains a stop signal that prevents CFTR from being made. Class II - CFTR is made, but does not reach the cell membrane Class III - CFTR is made and in the right place, but does not function normally Class IV - Channel does not move substances efficiently or at all Class V - <span>CFTR is made in smaller than normal quantities
Given these different classes, the easiest one to correct would most likely be Class V, since in this type of mutation, the only problem or abnormality is the production of insufficient amounts of the needed CFTR.
B cells are activated when their B cell receptor (BCR) binds to either soluble or membrane bound antigen. This activates the BCR to form microclusters and trigger downstream signalling cascades.
<u>Answer</u>: C.shows an inversely proportional relationship
As you have not posted the graph, I will add the correct answer you provided. Otherwise, without an answer, your question will get deleted from the system.