1.

The Nobel Prize for Chemistry this year is a A) tribute B) retribution to the power of evolution. The laureates A) hated B) harnessed evolution and used it in the laboratory with amazing results. Frances H. Arnold, an American who was given one-half of the prize, used ‘directed evolution’ to A) synthesize B) called variants of naturally occurring enzymes that could be used to manufacture biofuels and pharmaceuticals. The other half went to George P. Smith, also of the U.S., and Sir Gregory P. Winter, from the U.K., who evolved antibodies to A) combat B) confuse autoimmune diseases and even metastatic cancer through a process called phage display. The prizes reaffirm the A) execution B) importance of the concept of evolution in our understanding of life as among the most profound of forces we are exposed to.

A. AABBA
B. ABABB
C. ABAAB
D. BABBB
E. AAAAA
Answer» D. BABBB


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