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Biology Chapter 1: Nucleosides, Nucleotides, and Nucleic Acids

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Biology Chapter 1: Nucleosides, Nucleotides, and Nucleic Acids

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Questions and Answers

What is the prefix used to form the name of a deoxyribonucleoside?

Deoxyribo

Ribose

Ribonuclotide

Deoxy (correct)

What is the function of ATP in the living cell?

Storage of genetic information

Transmission of genetic information

Replication of DNA

Fundamental energy source (correct)

What is the primary function of nucleic acids in a cell?

Synthesizing carbohydrates and lipids

Regulating cell growth and division

Storing genetic information (correct)

Directing biosynthesis of enzymes and proteins

What is the bond that connects a purine or pyrimidine base to a ribose or deoxyribose in a nucleoside?

β-N glycosidic bond Signup and view all the answers

What is the name of the nucleotide that is an anhydride of phosphoric acid?

ATP Signup and view all the answers

What is the nucleotide that serves as one of the nature oxidizing agents?

NAD+ Signup and view all the answers

What is the difference between the sugar component in RNA and DNA?

RNA has ribose and DNA has 2-deoxyribose Signup and view all the answers

Which of the following bases is NOT found in RNA?

Thymine Signup and view all the answers

What is the nucleoside that corresponds to the base Uracil (U)?

Uridine Signup and view all the answers

What is the bond that connects nucleotides to form a nucleic acid?

Phosphate ester bond Signup and view all the answers

What is the polymer formed by nucleotides, responsible for the storage and transmission of genetic information?

RNA and DNA Signup and view all the answers

What is the term for the prefix indicating that oxygen is missing from the 2' position of ribose?

2-deoxy Signup and view all the answers

What type of bond joins nitrogenous bases to pentoses in nucleic acids?

O-glycosidic bond Signup and view all the answers

What type of bond links adjacent nucleotides in RNA and DNA?

Phosphodiester bond Signup and view all the answers

What is the correct base-pairing rule for cytosine in a double-stranded nucleic acid?

Cytosine pairs with guanine Signup and view all the answers

What is the correct statement about the tautomeric forms of bases such as uracil?

The lactam form predominates at neutral pH Signup and view all the answers

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 Signup and view all the answers

What is one of Chargaff's rules about the composition of typical DNA?

A + T = G + C Signup and view all the answers