18 Questions
What is the prefix used to form the name of a deoxyribonucleoside?
Deoxy
What is the function of ATP in the living cell?
Fundamental energy source
What is the primary function of nucleic acids in a cell?
Storing genetic information
What is the bond that connects a purine or pyrimidine base to a ribose or deoxyribose in a nucleoside?
β-N glycosidic bond
What is the name of the nucleotide that is an anhydride of phosphoric acid?
ATP
What is the nucleotide that serves as one of the nature oxidizing agents?
NAD+
What is the difference between the sugar component in RNA and DNA?
RNA has ribose and DNA has 2-deoxyribose
Which of the following bases is NOT found in RNA?
Thymine
What is the nucleoside that corresponds to the base Uracil (U)?
Uridine
What is the bond that connects nucleotides to form a nucleic acid?
Phosphate ester bond
What is the polymer formed by nucleotides, responsible for the storage and transmission of genetic information?
RNA and DNA
What is the term for the prefix indicating that oxygen is missing from the 2' position of ribose?
2-deoxy
What type of bond joins nitrogenous bases to pentoses in nucleic acids?
O-glycosidic bond
What type of bond links adjacent nucleotides in RNA and DNA?
Phosphodiester bond
What is the correct base-pairing rule for cytosine in a double-stranded nucleic acid?
Cytosine pairs with guanine
What is the correct statement about the tautomeric forms of bases such as uracil?
The lactam form predominates at neutral pH
What is the correct statement about the structure of the oligoribonucleotide pACGUAC?
The nucleotide at the 3' end has a phosphate at its 3' hydroxyl
What is one of Chargaff's rules about the composition of typical DNA?
A + T = G + C
This chapter covers the basics of nucleosides, nucleotides, and nucleic acids, including DNA and RNA, and their role in carrying genetic information in cells.
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