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OpenStudy (anonymous):
Which of the following was used in the 1940s to analyze amino acids that make up proteins? a.genetic engineering b.chromatography c.radioactive tracers d.x-ray diffraction
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OpenStudy (abb0t):
What's your guess, and why? You can rule out genetic engineering firstly b/c the technology was not as advance as it is today. So you have 3 answers left..
OpenStudy (anonymous):
Im not sure
OpenStudy (abb0t):
That's the point of a guess...Lol an educated guess.
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