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****THE BASE LOCATION FOR JUSTIN IS 320, NOT 319*** Next, you and your colleague

ID: 275917 • Letter: #

Question

****THE BASE LOCATION FOR JUSTIN IS 320, NOT 319***

Next, you and your colleagues attempt to isolate the gene coding for the defective enzyme. The gene sequence is shown in Table 29.2. You compare the sequence of the gene from your patient with three other patients you have had with the same symptoms. What is the amino acid change in the enzyme from your patient? What amino acid changes are associated with the enzymes from the other three patients? Justin Patient A Patient B Patient C PatientBase Pair Location Mutation 319 374 1004 1144 G?A G-c

Explanation / Answer

At base pair location 319

WT codon = CGC = Arg

Justin = CAC = His

At base pair location 374

WT codon = GGA = Gly

Patient A = GAA = Glu

At base pair location 1004

WT codon = CGG = Arg

Patient B = CCG = Pro

At base pair location 1144

WT codon = CCT = Pro

Patient C = TCT = Ser