From the 1920s through the 1960s, insulin used by patients with diabetes came from which sources:

Question

BlackTom AI · Accepted Answer

To tackle this question, consider the historical production of insulin before recombinant methods.
Option A: "chickens and ducks". This is unlikely because avian species are not known to have been a primary source for commercial insulin purification in the early to mid-20th century, and their pancreatic tissue was not used for insulin extraction in practice.
Option B: "pigs, cows, and chickens." While pigs and cows were indeed used, the inclusion of chickens makes this option suspect since there is no strong historical record of chicken-derived insulin being a standard source during the 1920s–1960s.
Option C: "pigs and chickens." Similar to B, the presence of chickens renders this choice incorrect because chickens were not a standard source for insulin extraction during the period in question.
Option D: "pigs and cows." This aligns with established history: porcine (pig) and bovine (cow) pancreases were the primary sources for purified insulin manufactured and used clinically from the 1920s through the 1960s, before recombinant human insulin became widespread.
In summary, the key idea is that the era relied on animal pancreases from mammals, specifically pigs and cows, rather than poultry species, making options with chickens or ducks unreliable as historical insulin sources.

BME 3 Treating Diabete... Week 8 Recombinant DNA and Production of Insulin

From the 1920s through the 1960s, insulin used by patients with diabetes came from which sources:

View Explanation

Log in for full answers

Similar Questions

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler