Genome expression profiles and drug design: reseracher are trying to design a druq that alters the expression level of the three
genes in a specific way. The desired change in expression, written as a vector in V3 is [3,9,-5], where all measurment are dimentionless. suppose two potential drugs are being studied, and the expression profiles that they induce are (A) [2,4,1] and (B) [-2,3,-5]. (a) What is the magnitude of the desired change in expression? (b) USing scalar projections, determine the fraction of this desired change that is induced by each drug. (c) Which drug is closest to having the desired effect?
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