What do the base sequence in DNA (A, T,C, G) determine?

Which of these is the result of scientific research and not engineering? a. a new shoe design that features air cushioning for more comfort and protection b. the creation of glass with uv protection. c. a conclusion about diet commonalities among diabetics. d. the development of a smaller, more compact missile.

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Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?