The linkage between five-carbon sugar (shorted as R), bases (shorted as N) and phosphate (shorted as P) in a nucleic acid is: ____
A. N-R-P
B. N-P-R
C. P-N-R
D. R-N-P
E. R-P-N
查看答案
Which of the following is not included in DNA:____
A. dAMP
B. dGMP
C. dCMP
D. dUMP
E. dTMP
When DNA and RNA is completely hydrolyzed, the products are: ____
A. different sugar and partly different bases
B. different sugar but same bases
C. same sugar and same bases
D. same sugar and partly different bases
E. different sugar and completely different bases
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
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