When DNA is completely hydrolyzed, the products are: ____
A. ribose and phosphate
B. deoxyribose and bases
C. deoxyribose and phosphate
D. ribose, phosphate and bases
E. deoxyribose, phosphate and bases
查看答案
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
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