Exhibit 29-3 Use the Data Below to Answer the Following Question(s)

question 11

Multiple Choice

Exhibit 29-3
Use the data below to answer the following question(s) .
Mevalonate is an important intermediate in the biosynthesis of cholesterol.This six-carbon compound can be formed from acetyl CoA utilizing two separate pathways.The most significant one involves the intermediate β-hydroxy-β-methylglutaryl-CoA.
-Refer to Exhibit 29-3.In step 2 of the mevalonate biosynthesis,acetoacetyl CoA is converted into β-hydroxy-β-methylglutaryl-CoA.This reaction is analogous to:

• A)a Claisen condensation
• B)an aldol reaction
• C)the malonic ester synthesis
• D)a carbonyl reduction reaction

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