18 Questions
What are the monomers of nucleic acids?
Nucleotides
Which type of sugar is found in DNA?
Deoxyribose
How are nucleotides in a DNA strand linked?
Phosphodiester bonds
What is the direction of nucleic acid synthesis?
5'-to-3'
Which of the following is NOT a nitrogenous base found in nucleic acids?
Glucose
In which molecule is uracil found instead of thymine?
RNA
What is the function of nucleic acids?
Genetic information storage
Which type of bond is responsible for holding together the two strands of DNA in the double helix structure?
Hydrogen bonds
Which molecule was likely the first catalyst and could have acted as a catalyst for its own replication and for synthesis of proteins?
RNA
What property of some RNA molecules makes them similar to enzymes?
Structure
Which modern-day enzyme catalyzes the synthesis of DNA from RNA in retroviruses?
Reverse transcriptase
What property of ribozymes allows them to catalyze peptide linkages?
Ribonucleotide composition
Which experimental evidence supports the hypothesis that short RNA molecules catalyze nucleotide polymerization?
An artificial ribozyme can assemble short RNAs into longer molecules.
What is the primary function of an artificial ribozyme that can catalyze the assembly of short RNAs into longer molecules?
Self-replication
Which cellular structure is responsible for separating living cells from their external environment?
Membrane
Which nucleotide plays a crucial role in energy transfer reactions and is a component of ATP?
Adenosine triphosphate (ATP)
In DNA sequencing, which process is used to make a complementary RNA copy of a DNA strand?
Transcription
What is the role of GTP in biochemical reactions, particularly in intracellular signaling?
Secondary messenger molecule in signaling cascades
Test your knowledge on nucleic acids, DNA bases, RNA, and complementary base pairing. Learn about the structure and function of nucleotides and how purines and pyrimidines interact. This quiz covers key concepts in molecular biology.
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