Figure 15.4.

-Refer to Figure 15.4.Homocystinuria is a genetic disorder that results from a defect in one of the enzymes of the metabolic pathway shown.The gene for which enzyme/molecule is most likely defective?
A)methylenetetrahydrofolate reductase
B)methionine synthase
C)tetrahydrofolate reductase
D)cystathione beta synthase

Question

Figure 15.4.
 
-Refer to Figure 15.4.Homocystinuria is a genetic disorder that results from a defect in one of the enzymes of the metabolic pathway shown.The gene for which enzyme/molecule is most likely defective?
A)methylenetetrahydrofolate reductase 
B)methionine synthase 
C)tetrahydrofolate reductase 
D)cystathione beta synthase

Quizplus · Accepted Answer

Homocystinuria is most commonly caused by a deficiency in the enzyme cystathione beta synthase, which is responsible for converting homocysteine to cystathionine.

Figure 15.4. -Refer to Figure 15.4.Homocystinuria Is a Genetic Disorder That Results