The active form of glucose in glycogenesis is ( )
A. UDPG
B. TDPG
C. ADPG
D. CDPG
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Structures of 20 amino acids in native proteins show ( )
A. all amino acids are in L form
B. all amino acids are in D form
C. all amino acids are in L form except glycine
D. all structures are in D form except glycine
The chemical bond stabilizing the primary structure of proteins is ( )
A. hydrophobic interaction
B. hydrogen bond
C. peptide bond
D. ionic bond
Which base is found only in RNA but not in DNA? ( )
A. U
B. A
C
D. G
Products of complete hydrolysis of RNA and DNA include ( )
A. the same ribose but partially different bases
B. the same bases but different ribose
C. the different ribose and partially different bases
D. the different bases but same ribose
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