Melphalan, a drug used in chemotherapy, reacts with itself in the body before binding with its target, as illustrated in the mechanism below. Which two patterns of arrow pushing are seen in this reaction? 
Definitions:
Marginal Cost
The financial outlay for making one extra unit of a product or service.
Capitalist Economy
An economic system where private individuals or businesses own capital goods, and the production of goods and services is based on supply and demand.
Employment Discrimination
Occurs when a job applicant or employee is treated unfavorably because of characteristics, such as race, gender, age, or disability, that are unrelated to their job performance.
Earnings
The amount of profit that a company produces during a specific period, which is a key indicator of its financial health.
Q23: Provide the reagents necessary to carry out
Q24: Which of the following compounds is more
Q54: What is the leveling effect?
Q57: What is the product of the following
Q75: Identify the expected product(s) for the reaction
Q90: What is the relationship between the following
Q99: Draw the mechanism and product for the
Q121: Which of the following is a tertiary
Q141: Which of the following is most reactive
Q176: Which of the following is the acceptable