Which direction are phosphodiester bonds of DNA usually built in?
A) 3' ? 5'
B) 5' ? 1'
C) 1' ? 5'
D) 5' ? 3'
E) Any direction is fine and will not affect the function of the DNA strand.
Answer: D
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Blood flows directly from the intestine, where nutrients enter, to the liver, which
A. removes and alters many of these nutrients. B. adds bile to the blood. C. increases the number of enzymes and completes digestion. D. simply allows the blood to pass through.
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Each cell contains two chromosomes with genes for the same traits; these chromosomes are called ________
Fill in the blank(s) with correct word