Given below are two statements: Statement I: In 1983, the American company Eli Lilly prepared two DNA sequences corresponding to A and B chains of human insulin. Statement II: These sequences were introduced into plasmids of yeast to produce insulin chains. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

Statement I is correct as Eli Lilly prepared two DNA sequences corresponding to the A and B chains of human insulin in 1983. Statement II is incorrect because these DNA sequences were introduced into plasmids of E. coli (a bacterium), not yeast, to produce the insulin chains. Yeast is used as a host for producing the Hepatitis B vaccine, which is a common point of confusion. Answer: Statement I is correct but Statement II is incorrect