DNA strands can begin to separate at the temperature of ________.

A. 60°C
B. 100°C
C. 90°C
D. 42°C
E. 37°C


Answer: C

Biology & Microbiology

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Fertilizers increase plant growth by providing:

What will be an ideal response?

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Explain the relationship between protein consumption and the nitrogenous waste products found in mammalian urine

What will be an ideal response?

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Which process represents a step in the nitrogen cycle?

A) Nitrogen-fixing bacteria convert atmospheric nitrogen to nitrates. B) Nitrites bind to soil particles. C) Nitrogen-fixing bacteria convert atmospheric nitrogen to ammonia. D) Denitrifiers convert ammonium to atmospheric nitrogen.

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The most accurate nucleotide base composition of the DNA double helix is

A. A=U B. G=A C. T=C D. T+G=A+C E. T+A=C+G

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