Question

What is the one main reason that made extraction of insulin from animals ineffective

• A. Amount of insulin from one animal was in micrograms
• B. Animals produce less amount of insulin
• C. Animal insulin was not effective in humans
• D. Not all animals produce insulin

Answer 1

The correct option is A Amount of insulin from one animal was in micrograms

To obtain one dose of insulin for a human, several pigs or cows needed to be sacrificed. This made extraction of insulin from pigs and cows very expensive and inefficient.