Final answer:
Humalog is the modified human insulin that is less antigenic and preferred for contemporary use over other forms such as Humulin or animal-derived insulins.
Step-by-step explanation:
Humalog is a modified human derivative of insulin and is therefore less antigenic and the preferred insulin for use today. Unlike hormones like glucagon and insulin produced in the pancreas, Humalog is engineered to be more effective than human insulin. This modification was possible due to advancements in recombinant DNA technology, which allowed scientists to produce large-scale quantities of human insulin in E. coli, making synthetic human insulin-like Humulin. However, Humalog's modifications make it act more quickly and with less risk of immune reactions compared to regular human insulin or animal-derived insulins such as those that were once extracted from pigs.