Multiple Choice
Which of the following is a key difference between DNA nucleotides and RNA nucleotides?
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Which of the following descriptions best fits the class of molecules known as nucleotides?
The four nitrogenous bases commonly found if DNA are:
Which of the following statements about DNA structure is true?
What are the four nitrogenous bases found in RNA?
a. Cytosine, guanine, thymine, uracil (C, G, T, U)
b. Adenine, cytosine, guanine, thymine (A, C, G, T)
c. Adenine, cytosine, guanine, uracil (A, C, G, U)
d. Alanine, cysteine, glycine, threonine (A, C, G, T)
What determines the primary structure of a DNA molecule?
a. Stem-and-loop configuration
b. Complementary base pairing
c. Deoxyribonucleotide sequence
d. Hydrophobic interactions and hydrogen bonding