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Biology 17 Online
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

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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