All of the following are complementary nucleotide base pairs EXCEPT

A) C-G
B) A-U
C) T-A
D) U-C


Answer: D) U-C

Biology & Microbiology

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The duration, frequency, depth, and season of flooding of a freshwater period are collectively referred to as the ________

Fill in the blank(s) with correct word

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On your way to class, you decide to cross a busy street but fail to notice a fast-moving car coming toward you

When you do see the car, your heart rate and breathing increase, and you feel a burst of energy that helps you quickly move to the sidewalk. Describe how your nervous system was able to process the sight of the car with the need to move your legs.

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The presence of ________ in the microenvironment of cancer cells acts a potent inhibitor of cell proliferation.

A) IL-1 B) TGF-beta C) TNF-alpha D) IL-2 E) INF-gamma

Biology & Microbiology