Deoxyribose has a carbon atom that is not part of the pentose ring. In a nucleotide, what is attached to this carbon?
A. three hydrogen atoms
B. a nitrogenous base
C. a phosphate group
D. one hydrogen atom
Answer: C
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Answer the following statement true (T) or false (F)
Which one of the following properties of water is primarily responsible for the ability of trees to draw water up from the roots to the leaves?
A. polarity B. density C. solvent capability D. high surface tension E. pH neutrality
Which one of the following is the least likely reason that bipedalism evolved in hominoids?
A. requires less energy than walking with all four legs B. frees the hands for tool-making C. frees the hands for carrying food to be shared with others D. allows better surveillance for predators E. increases access to food resources
For threshold traits the liability for a genetic disorder is distributed among individuals in a normal
curve. Indicate whether the statement is true or false.