Why are the strands of DNA said to be complementary to each other?
A) The sugar-phosphate chains are running in opposite directions.
B) All the bases of one strand are paired up with their complementary bases on the other strand.
C) The sugar-phosphate chains of each strand are identical.
D) Both strands can have any of four possible bases attached.
Answer: B
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Which of the following has not been produced by fermentation technology?
A) Vaccines B) Enzymes C) Biopesticides D) Steroid hormones E) All of the above have been produced by this technology.
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