Propose a mechanism for the following coenzyme B12-dependent enzyme-catalyzed reaction. 
Definitions:
Insulation Stripped
The condition where the protective outer layer of wiring is removed or worn away, exposing the conductive material.
Modem
Telecommunications device that translates digital signals to analog for transmission.
Digital Signals
Electronic signals that represent data as sequences of discrete values, typically represented by binary code.
Analog Signals
Continuous signals that vary over time and can represent information such as temperature, sound waves, or electrical voltage.
Q2: Provide the structure of poly(tetrafluoroethylene).
Q4: Do you expect pyridine to undergo nucleophilic
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Q10: In the allyl radical,which π molecular orbital
Q14: Identify the initiator in a radical polymerization.<br>A)KOH<br>B)BuLi<br>C)CH<sub>3</sub>OOCH<sub>3</sub><br>D)BF<sub>3</sub>,H<sub>2</sub>O<br>E)HCl
Q32: Draw the structures of piperidine and morpholine
Q46: What is the single-letter abbreviation for glutamine?<br>A)E<br>B)W<br>C)R<br>D)Y<br>E)Q
Q64: Which of the following statements account for
Q75: The antiviral drug,acyclovir has a 3-dimensional structure
Q92: The first polymer,invented by A.Parke in 1856,was<br>A)Polyethlene.<br>B)Polyester.<br>C)Polystyrene.<br>D)Celluloid.<br>E)Teflon.