In the free nucleotide, phosphate group is usually located in: ____
A. C1 of five-carbon sugar
B. C2 of five-carbon sugar
C3 of five-carbon sugar
D. C4 of five-carbon sugar
E. C5 of five-carbon sugar
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Which of the following bases is not included either in DNA nor RNA: ____
A. adenine
B. xanthine
C. guanine
D. thymine
E. uracil
Which of the following is not included in a nucleic acid: ____
A. C
B. H
C. O
D. S
E. N
To form a nucleic acid, the linkage between nucleotides is: ____
A. glycosidic bond
B. hydrogen bond
C. 3’, 5’-phosphodiester
D. peptide bond
E. 2’, 5’-phosphodiester
The basic component of nucleic acid is: ____
A. phosphate and ribose
B. nucleoside and nitrogen bases
C. mononucleotide
D. nitrogenous bases
E. deoxyribose and nitrogen bases
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